Abstract: A plunge base router for use in an upright and an inverted position is disclosed. The router includes a depth adjustment mechanism, a depth stop mechanism, a post lock mechanism, and a return spring defeat mechanism. The depth adjustment mechanism includes a course adjustment mechanism and a fine adjustment mechanism to set the cutting distance of a bit. The course and fine adjustment mechanisms are usable in both the upright and inverted positions and the fine adjustment mechanism is operable without being reset throughout the full range of motion of the plunge router. The depth stop includes a mechanism for locking the end of a rod on the housing to the base in order to set the relative position in between the housing and the base. The depth stop also includes a plurality of steps for engaging the rod and permitting incremental passes of cutting at different depths with the router.

Abstract: A plunge base router for use in an upright and an inverted position is disclosed. The router includes a depth adjustment mechanism, a depth stop mechanism, a post lock mechanism, and a return spring defeat mechanism. The depth adjustment mechanism includes a course adjustment mechanism and a fine adjustment mechanism to set the cutting distance of a bit. The course and fine adjustment mechanisms are usable in both the upright and inverted positions and the fine adjustment mechanism is operable without being reset throughout the full range of motion of the plunge router. The depth stop includes a mechanism for locking the end of a rod on the housing to the base in order to set the relative position in between the housing and the base. The depth stop also includes a plurality of steps for engaging the rod and permitting incremental passes of cutting at different depths with the router.

Abstract: A hand-held power tool, such as a rotary cutting tool, allows for improved operator control and visibility. The power tool includes a housing and a motor provided in the housing. A cutting accessory is coupled to the motor and is adapted to cut a workpiece at a point of cut. At least one light emitting diode is coupled to the housing and configured to direct light toward the point of cut.

Abstract: The invention relates to an electric power tool with a housing, in which a drive mechanism is received; the electric power tool includes a shaft, with a chuck (20) received in it, for receiving a tool insert (19). The chuck (20) is surrounded by an annular bearing face (9). The bearing face (8, 9) includes receiving elements that enable the guidance of the electric power tool on a guide rail (1, 35), such as receptacles (21, 22; 31, 32) and (33) for slip-on tools (25), such as templates, that can be received on the support (8, 9).

Abstract: An attachment adapted to be mounted to the nose piece of the rotary tool or to the outer end of a flexible drive extension is disclosed. The attachment encircles the collet and bit at the base end portion of the attachment and has an extension portion that extends along the length of the bit and partially encircles it, providing a planar surface that limits the depth of engagement by the bit during operation. Also the extension has a semi-cylindrical surface portion that contacts a smooth outer end portion of the cutting bit and provides support to the bit so that it cannot be deflected and cut into the extension portion of the attachment. A recess in the back of the attachment is adapted to provide a surface into which the end of a user's thumb may rest for the purpose of applying downward force to the attachment during operation.

Abstract: A pneumatic edge trimming machine has a base a center of which having a hole. A sleeve extends upwards from the base for receiving a hollow outer casing. The outer casing has a top and a lower end; and the top and lower end of the outer casing are fixed to an inner casing through a frame. A space penetrating the inner casing and outer casing is formed. The inner casing is used to be installed with a pneumatic motor. A shaft is extended from a pneumatic motor. The shaft has a tool combining portion which exposes out of the hole at the base. The inner casing has an air inlet and a control switch. The inner casing has a vent facing toward a top of the outer casing, and the top of the outer casing being connected to a predetermined space by a tube. Therefore dust can be absorbed automatically in working.

Abstract: A plunge base router for use in an upright and an inverted position is disclosed. The router includes a depth adjustment mechanism, a depth stop mechanism, a post lock mechanism, and a return spring defeat mechanism. The depth adjustment mechanism includes a coarse adjustment mechanism and a fine adjustment mechanism to set the cutting distance of a bit. The course and fine adjustment mechanisms are usable in both the upright and inverted positions and the fine adjustment mechanism is operable without being reset throughout the full range of motion of the plunge router. The depth stop includes a mechanism for locking the end of a rod on the housing to the base in order to set the relative position in between the housing and the base. The depth stop also includes a plurality of steps for engaging the rod and permitting incremental passes of cutting at different depths with the router.

Abstract: A machine is provided for stripping the ground wall insulation from a stator bar quickly and in such a manner that the copper strands will not be damaged. The apparatus of the invention includes a power driven cutting tool for milling or routing the insulation from a portion of the insulated bar, a sensing device for detecting the location of the copper strands and a height adjustment assembly for determining a disposition of the bar with respect to the cutting tool. In an exemplary embodiment, the height adjustment assembly is adjusted in accordance with the location of the copper strands as detected by the sensing device to substantially prevent the cutting tool from making damaging contact with the copper strands.

Abstract: A plunge-type router is disclosed which has a base and a head assembly that is vertically adjustable by an adjusting mechanism. The plunge router includes an electronic control system with a digital display and control functionality that enables the router to accurately determine a baseline or zero position for a router bit installed in the router and permits the user to input a depth of cut value or other predetermined command. The control system then automatically causes the motorized adjusting mechanism to go to the appropriate position. The electronic control system enables the storage of multiple depth settings as well as multiple step or macro operations. In this regard, macros may be run to provide incremental cutting necessary for performing multiple passes to achieve a relatively deep depth of cut.

Abstract: A plunge-type router is disclosed which has a base and a head assembly that is vertically adjustable by an adjusting mechanism. The plunge router includes an electronic control system with a digital display and control functionality that enables the router to accurately determine a baseline or zero position for a router bit installed in the router and permits the user to input a depth of cut value or other predetermined command. The control system then automatically causes the motorized adjusting mechanism to go to the appropriate position. The electronic control system enables the storage of multiple depth settings as well as multiple step or macro operations. In this regard, macros may be run to provide incremental cutting necessary for performing multiple passes to achieve a relatively deep depth of cut.

Abstract: A power hand tool (10) comprising a body (100), an electric motor (M), an output driving shaft (150) rotatable by the motor (M), a holder (160) for holding a cutting bit and rotatable by the shaft (150) for in turn rotating the cutting bit for cutting, an electrical switch (130) provided on the body (100) proper for controlling the operation of the motor (M), and a detachable handle (200). The handle (200) has a first, fixed end (220) releasably connected to the body (100) a middle section extending to form a relatively large gap with the body (100) sufficiently wide to allow the handle (200) to be gripped by a hand, and a second, free end (210) The free end (210) extends to approach a region (106) on the surface of the body (100) adjacent and reaching short of the switch (130) and forms a relatively small gap (108) with the region (106) sufficiently narrow to retain the hand gripping the handle (200).

Abstract: A structure of a drilling machine having a main machine provided on one end thereof with a control switch, with this, by pressing the control switch to position a clamping portion for a bit, the bit can be changed conveniently; and an adjusting and fixing seat can be fast connected to the periphery of the clamping portion. The adjusting and fixing seat includes a fixing seat and an adjusting rack stacking with each other by means of the vertical walls respectively provided on the peripheries of the two, and a latching bolt and a control piece are pivotally connected to the vertical walls. By pressing the control piece, the adjusting rack can be fast adjusted for its desired height, so that the bit can be used to drill a hole of a desired depth.

Abstract: A hand-held power tool, such as a spiral cutting tool, with improved operator control and visibility. The power tool includes a motor contained in a motor housing. The motor may be a variable speed motor controlled by a speed control user interface mounted on the housing. Each time a speed control button is actuated, the motor speed is changed. A display provides the operator of the tool with an indication of the motor speed selected. A detachable handle is provided with a moveable mechanism for easily, quickly, and securely attaching the handle to the housing and removing the handle therefrom with one hand. The detachable handle may include one or more storage compartments formed therein. The detachable handle includes a trigger switch mounted therein for operating the cutting tool motor. The trigger switch is mounted in the detachable handle in a position such that the switch is operated by the little finger and ring finger of an operator's hand.

Abstract: A guide for setting the depth of cut of a cutting tool, or other hand-held power tool, which automatically locks into a desired position to set the depth of a cut without requiring manual operation of a locking knob or similar structure. The depth guide is released from the locked Position by actuation of a release switch. The depth guide includes a depth guide base, a depth guide shaft attached to the depth guide base, and an automatic locking and release mechanism coupled to the depth guide shaft. The automatic locking and release mechanism and depth guide shaft may be mounted in a handle of the hand-held power tool, such as a detachable handle, for mounting the depth guide to the tool. A dust collector is provided for removing cutting debris which may accumulate in the base of a depth guide around the point of a cut.

Abstract: A plate joiner including a fence support, a drive, and a fence system. The fence support includes a cutter and a contact surface, which defines a cutter slot. The cutter is arranged and configured to protrude from fence support through cutter slot to make a plunge cut into a surface of a workpiece when the contact surface is pressed against the surface and the cutter is plunged into the workpiece by pushing on a rearward handle portion of the tool. The drive is arranged and configured to rotatably drive the cutter through a motor. A preferred fence system includes an angle adjustment system arranged and configured to position the fence at a wide range of fence angles and, at any selected distance from a top face of the workpiece to the fence, the distance from the top face of the workpiece to the cutter remains constant as the front fence angle is adjusted. A preferred fence system includes a trunnion which pivotally couples the front fence to the fence system.

Abstract: A router having a base and an adjustably positioned motor assembly is provided with a pair of ergonomic elongate handles on opposite right and left sides of the motor housing. The elongate handles which are connected to and spaced from the motor housing by a pair of bridge members are ellipsoidal in shape when viewed in a transverse side elevation. Each elongate handle has a longitudinal length L having a large upper end, diameter Z and a lower small end diameter Z′.

Abstract: A collet assembly for a tool comprising a collet nut rotatably connectable to the tool; a collet operatively connectable to the collet nut; and a collet wrench movably connected with the tool and engageable with the collet nut for tightening and loosening the collet.

Abstract: A device for removing grout from between a joint. The device comprises at least one handle member with at least one guide and at least one motor portion. The motor portion has at least one cutting member. The guide and the cutting member are aligned. The guide is adapted to guide the cutting member along the joint.

Abstract: A multipurpose, portable fixture for hand held woodworking power tools is described. The portable fixture of the present invention allows for controlled multidirectional operations with the woodworking tools on a workpiece. The woodworking tool may be tipped, rotated and linearly displace through multiple planes, thereby allowing complex operations on the workpiece. A variety of woodworking tools may be mounted to the portable fixture of the present invention to perform a variety of operations on the workpiece.

Abstract: A portable electric right-angle plunge router (10) is disclosed which has a pair of laterally spaced apart bases (13, 14), two pair of laterally spaced apart columns (12) and a motor housing assembly (11). The bases (13, 14) have planar work engaging surfaces (15). Affixed to the bases (13, 14) are the laterally spaced apart columns (12) which extend perpendicularly to the work engaging surfaces (15). The motor housing assembly (11) has a central axis which is parallel to the work surface and is mounted on the laterally spaced apart columns (12) to allow the housing assembly to move vertically toward and away from the bases. Laterally space apart column guides (17) affixed to the housing (11) are aligned and sized to slidingly engage the columns (12). A handle is formed in the housing (11) between the front and rear column guides (17). A drive motor affixed in the housing has an armature shaft which is rotatable about an axis being substantially the horizontal axis of the housing (11).

Abstract: A collet assembly for a tool comprising a collet nut rotatably connectable to the tool; a collet operatively connectable to the collet nut; and a collet wrench movably connected with the tool and engageable with the collet nut for tightening and loosening the collet.

Abstract: A plate joiner including a fence support, a drive, and a fence system. The fence support includes a cutter and a contact surface, which defines a cutter slot. The cutter is arranged and configured to protrude from fence support through cutter slot to make a plunge cut into a surface of a workpiece when the contact surface is pressed against the surface and the cutter is plunged into the workpiece by pushing on a rearward handle portion of the tool. The drive is arranged and configured to rotatably drive the cutter through a motor. A preferred fence system includes an angle adjustment system arranged and configured to position the fence at a wide range of fence angles and, at any selected distance from a top face of the workpiece to the fence, the distance from the top face of the workpiece to the cutter remains constant as the front fence angle is adjusted. A preferred fence system includes a trunnion which pivotally couples the front fence to the fence system.

Abstract: A portable electric right-angle plunge router (10) is disclosed which has a pair of laterally spaced apart bases (13, 14), two pair of laterally spaced apart columns (12) and a motor housing assembly (11). The bases (13, 14) have planar work engaging surfaces (15). Affixed to the bases (13, 14) are the laterally spaced apart columns (12) which extend perpendicularly to the work engaging surfaces (15). The motor housing assembly (11) has a central axis which is parallel to the work surface and is mounted on the laterally spaced apart columns (12) to allow the housing assembly to move vertically toward and away from the bases. Laterally space apart column guides (17) affixed to the housing (11) are aligned and sized to slidingly engage the columns (12). A handle is formed in the housing (11) between the front and rear column guides (17). A drive motor affixed in the housing has an armature shaft which is rotatable about an axis being substantially the horizontal axis of the housing (11).

Abstract: A fabrication station (117) suitable for use mobile unit (1) or as stand alone unit for fabricating solid surface construction materials is provided, as is a method of use therefor. The fabrication station is equipped with climate control units (23, 23a, 123) fabrication equipment (24, 124) and other environment control equipment. Therefore, solid surface construction materials can be fabricated onsite or at a remote fabrication shop. In the fabrication process according to the present invention, dimensional information is laid out directly onto the solid surface material stock. The fabrication station can include an adjustable support (124a) that supports each slat support channel portion so that the position of the slat of support channel portions is adjustable relative to the support wall and one another to provide a fine adjustment. The fabrication station can also include removable slat portions 124c to accommodate different shapes of solid surface material to fabricate.

Abstract: A plunge router adjustment mechanism including a drive shaft longitudinally fixed but rotatable in a base plate and extending towards an opposite end of the plunge router. A carriage moveable along the drive shaft is connectable to the router housing. Optionally, a sub-carriage, moveable along the carriage and directly attached to the housing, allows fine adjustment of the housing relative to the base plate. Optionally a coarse adjustment stop member is releasably fixable along the drive shaft for coarse positioning of the housing relative to base plate.

Abstract: A hand-held tool having an adjustable grip is provided. The grip includes a handle moveable from a locked position to an unlocked position and a clutch mechanism engageable with the handle when the handle is in the locked position. The clutch mechanism prevents the handle from being repositioned when the handle is in the locked position and allows the handle to be repositioned relative to the tool when the handle is in the unlocked position. A shaft is rotatably disposed through a socket in the housing, and a cog may be disposed on a first end of the shaft, selectively engageable with the socket. When the shaft is in a first position, the cog engages the socket and the shaft may not be rotated, and when the shaft is in a second position, the cog does not engage the socket and the shaft may be freely rotated within the socket. A handle is disposed on a free end of the shaft.

Abstract: A pneumatic tool kit including a main body, a threaded plug, a connecting seat, at least one grinding member, a protective cover, a saw disk seat, an adjustment seat, at least one edge-milling tool, a stopper board and at least one drilling/milling tool. By means of the tool hole of the main body and the connecting seat, four different kinds of tools can be respectively installed on the main body for four different usages including engraving, cutting, edge-milling and drilling. Therefore, the main body is usable for four kinds of usages so that the manufacturing cost for the tool is lowered. In addition, by means of the pneumatic motor of the main body, the tool kit has longer and more stable using life.

Abstract: To provide a chuck assembly which is superior in practical usability and workability in clamping and fixing a tool to a spindle without fail and with ease by lever-operation of a specialized operational jig, a taper portion is provided on at least one of an inner circumferential wall of the sleeve portion and an outer circumferential wall of the tool clamping portion, the tool clamping portion and the sleeve portion are brought into contact with each other at the taper portion, a retainer portion for retaining the operational jig is provided on the sleeve portion, a support portion is provided in a predetermined position of the chuck assembly body for supporting the operational jig retained at the retainer portion, the sleeve portion retained by the operational jig is slidingly moved relative to the tool clamping portion when the operational jig is lever-operated in a taper direction of the taper portion by using the support portion as a fulcrum, and the opening portion of the tool clamping portion is widened

Abstract: Improvements made to a router relate to a plunge router locking system. The locking system comprises a locking arm lever coupled to a threaded member arm which engages a plunge guide post to hold the router motor housing at a desired height above the router base when the locking arm member is in the locked position. When the locking arm member is moved into an unlocked position, the motor housing can move up and down the plunge guide post, where the motor housing is opposed by a bias system comprising a compression spring to prevent the motor housing from free-falling into the router base. Additionally, the locking arm lever can be held in the unlocked position with the use of a mating coupling member attached to the motor housing in order to keep the plunge locking system in an unlocked position.

Abstract: A router includes a tool holder which has a spindle with a bore to receive a router tool bit. A sleeve surrounds the spindle. A locking mechanism retains the router bit in the bore. The locking mechanism includes at least one rolling member in contact with the sleeve and which extends into the bore. The rolling member locks the router bit in the tool holder. A biasing member retains the sleeve in a locked position. The locking mechanism includes an activation member remotely positioned from the sleeve for moving the sleeve between the locked and unlocked position.

Abstract: A device for cutting a workpiece by means of a rotatingly driven tool bit has a suction hood surrounding the tool bit in annular manner with a through-opening for the tool bit to pass through. The suction hood forms a suction duct open to the tool bit which is limited by an outer wall. At least a part of the outer wall is curved in a perpendicular plane in the form of a parabola, and the focal point of the parabola lies beneath the workpiece engagement surface formed by the suction hood. Because of this parabola shape, chips thrown by the tool bit against the outer wall are reflected essentially parallel to the workpiece engagement surface and thus do not escape up through the through-opening.

Abstract: A bit attaching arrangement for a power tool has a collet nut threadably engaging a rotatably driven shaft of the power tool. The collet nut has a plurality of slots positioned on an outer peripheral surface. A first gear is disposed on the shaft so that rotation of the first gear causes rotation of the shaft. An actuating member having a second gear associated therewith is attached to the housing of the power tool. The actuating member also has a slot-engaging extension associated therewith. The actuating member is positionable between a first position and a second position. In the first position, the second gear engages the first gear and the extension engages one of the slots of the collet nut such that rotation of the actuating member results in rotation of the shaft while maintaining the collet nut at a generally fixed rotational location.

Abstract: A rotary power tool is provided having a remotely actuated chuck device. The chuck is mounted onto the end of a drive spindle that extends from the casing of the power tool. The chuck includes an outer sleeve member that is axially movable relative to the drive spindle between a gripping and release position. A chuck actuating device is provided having a first member engaged with the outer sleeve member and which extends generally radially outward from the drive spindle or chuck. The first member is movable in a direction so as to move the outer sleeve member between the gripping position and release position. A solenoid and a biasing mechanism engage the first member so that the chuck device is movable between the gripping and release positions.

Abstract: The invention relates to a motor-driven hand tool for machining of workpieces, in particular planar workpieces, having a guide surface which can be placed on the workpiece to be treated, and a face milling cutter for processing which projects past the guide surface, and which has an axis of rotation extending perpendicularly to the guide surface.

Abstract: Improvements made to a router a relate to a switchable router brake system. The switchable brake system permits a motor brake to be selectably engaged to operate when the router motor is turned off. When engaged, the motor brake, which comprises a brake resistor being placed electrically across the motor windings, causes the router motor to stop rotating almost immediately. This feature, however, is not always desired; the switchable brake system permits the operator to engage the use of the brake only when desired, thus providing the option to selectively eliminate jerking caused electric brake torque induced in the router when the brake engages.

Abstract: A planer-type face milling machine for processing wood having a drive motor that is coupled to a work spindle, which supports, on a free end, a milling head, which on its front side supports cutting edges, the milling head being configured particularly as a disk-shaped body, running parallel to the workpiece surface, the milling cutting edges being supported by a cutter, particularly a planar one, furnished with main and secondary cutting edges, and removably arranged on the milling head, is configured as a particularly effective and-tool machine in that the planer-type face milling machine is correspondingly small and light and has a housing having a handle, the milling head supporting a cutter without a main cutting edge and having only at least one secondary cutting edge.

Abstract: A dust collecting router for collecting dust and debris while using a router. The dust collecting router includes a housing with a passage therethrough with a pair of ends each having an opening into the passage. A motor is mounted in the housing and has a rotating shaft outwardly extending therefrom towards a first end of the housing. A cutting bit is coupled to a free end of the rotating shaft and outwardly extending through the opening of the first end of the housing. An impeller comprising a plurality of fan blades outwardly radiating from the rotating shaft of the motor. A collecting container is in communication with the opening of the second end of the housing.

Abstract: Improvements made to a router relate to a fine adjust depth stop system. The preferred router comprises a micro-adjust knob coupled to a threaded member within one of a plurality of plunge guide posts. A depth stop nut is coupled to the treaded member such that the nut travels up and down the threaded member as the mirco-adjust knob is rotated. The location of the nut within the plunge guide post defined a depth stop position for the motor housing relative to a router base. When the motor housing is located at the depth stop position, the stop point, and thus the motor housing, will move up and down relative to the base as the micro-adjust knob is rotated.

Abstract: Equipment for making a hole or cavity formation in a curved or planar wall element, and for cutting out a disc-shaped piece of material fitting the hole or cavity formation, includes a frame with devices for fixing it on the wall element, and a carriage displaceably mounted in a first linear direction. A slide is mounted to be displaceable in a direction perpendicular to the first linear direction and carries a tool unit. The carriage has wheel sets which are biased against the wall element. The wheel sets are pivotable and displaceably mounted on a respective guide slide, which is mounted to be displaceable in the first linear direction.

Abstract: A plate joiner including a fence support, a drive, and a fence system. The fence support includes a cutter and a contact surface, which defines a cutter slot. The cutter is arranged and configured to protrude from fence support through cutter slot to make a plunge cut into a surface of a workpiece when the contact surface is pressed against the surface and the cutter is plunged into the workpiece by pushing on a rearward handle portion of the tool. The drive is arranged and configured to rotatably drive the cutter through a motor.A preferred plate joiner includes a cutter plunge system arranged and configured to provide a plurality of release positions that reduce the distance traveled in making a plunge cut for a smaller blade and to prevent a blade from protruding from the tool in a release position.

Abstract: Improvements made to a router relate to a sub-base alignment system. In a preferred embodiment, the alignment system comprises a plurality of raised bosses which are located on the sub-base at known locations and which engage a plurality of recessed cavities in the router base. Alternatively, the raised bosses may be placed on the router base and the cavities may be located in the sub-base, or a combination of boss and cavity locations may be used. The router base is positioned at a known locations relative to the center of rotation of the router bit. For example, in the plunge router shown, the base is coupled to plunge guide posts, which themselves are coupled to the motor housing at known locations. The coupling of the raised bosses with the recessed cavities places the sub-base at a known position relative to the router base.

Abstract: A rotary power tool incorporates a remotely actuated chuck device. An engagement surface, such as a threaded or helical surface, is defined on an outer circumference of the chuck device over an axial length thereof. An actuator member is disposed concentric and rotatable relative to the engagement surface. In an actuation mode, the actuation member is brought into engagement with the engagement surface so that rotation of the actuator member drives the chuck device axially between gripping and release positions.

Abstract: Improvements made to a router relates to a plunge router depth stop system. The depth stop system comprises a depth stop rod contained within a restraining collar coupled to the router housing. The depth stop rod is configured both to rotate at a fixed height above the router base and to slide up and down within the collar in order to adjust its height above the base. At an upper end of the depth stop rod, a turret knob permits an operator to rotate the rod within the collar. At the other end of the rod, a protrusion portion selection member is located to engage selectively one of a plurality of step-wise rising depth stop position surfaces located on the router base. When the protrusion portion selection member is aligned vertically above one of the depth stop position surfaces, the motor housing will plunge until the protrusion portion selection member engages the depth stop position.

Abstract: A rotary power tool is provided having a remotely actuated chuck device. The chuck includes an outer sleeve member that is axially movable relative to the drive spindle between a gripping and release position. A sleeve actuating device is provided having a first member engaged with the outer sleeve member and which extends generally radially outward from the drive spindle or chuck. The first member is movable in a direction so as to move the outer sleeve member between the gripping position and release position. The sleeve actuating device includes an actuator member configured with the first member to move the first member upon an external force being applied thereto. The actuator member is generally perpendicular to the axis of the drive spindle and may be limited in length to be confined in the perimeter of the casing. In this manner, an operator can move the chuck device between the gripping release positions at a location remote from the chuck device and drive spindle.

Abstract: A rotary power tool has a remotely actuated chuck device. A hydraulic actuating system is incorporated in the power tool and is configured to move the chuck device between the gripping and release positions upon hydraulic fluid being supplied to at least one hydraulically driven actuator mounted relative to the tool casing and engaged with the chuck device to move the chuck between gripping and release positions.

Abstract: A three-in-one router accessory tool is provided. A router stabilizer base, fixed fence and floating fence can be used in various combinations to enhance the capabilities of the router. The router attachment aids the operator in finishing or smoothing wood pieces and can also be used as a biscuit slot cutter, obviating the need to purchase specialized wood working tools.

Abstract: Improvements made to a router include a switching system which is part of a router handle and which operates the router motor by connecting it to an external electrical power source. In a preferred embodiment, the present switching system comprises the use of a locking lever and trigger in combination to activate the motor, to hold the trigger in a locked-on position to maintain the connection of electrical power to the motor, and to lock the movement of the trigger from occurring before an operator attempts to engage the motor. The switching system may also be combined with a preferred router handle shape in order to make the long term operation of the router and its switching comfortable with extended use.

Abstract: A hand held router (2) includes a rotatable member (22) having screwthread engagement with the housing (4) of the router (2). Rotation of the rotatable member (22) causes adjustment of the depth of cut of the router bit (18) protruding through the rotatable member (22). A releasable detent means (30) engages with latching members (28) in the rotatable member (22) thereby to enable locking of the depth of cut mechanism.

Abstract: An angle attachment for a hand-held power tool, such as a spiral cutting tool, includes an angle attachment housing having an open first end adapted to be attached to the motor housing of the power tool. An alignment bearing is mounted in the angle attachment housing and adapted to receive and support a first shaft having a first shaft gear mounted thereon. An attachment shaft is mounted in the angle attachment housing at an angle, e.g., a right angle, to the first shaft. The attachment shaft includes an attachment shaft gear mounted thereon which is engaged with the first shaft gear. One or more attachment shaft bearings are mounted in the angle attachment housing to support the attachment shaft for rotational movement thereof. The first shaft is coupled to a motor shaft of the power tool before the angle attachment housing is attached to the power tool motor housing.

Abstract: A router with a cutter head containing the drive motor so that the cutter head is held in a displaceable manner at guide columns which are secured at a base plate which is provided with a central opening for the passage of a cutter inserted in the tool holder of the cutter head, is provided in the base plate with a suction intake channel which surrounds the central opening over at least the larger part of its periphery and to which a suction extraction channel is connected. The suction extraction channel runs inside one of the guide columns which for this purpose has been constructed so that it is hollow.