Abstract: It is an object of the invention to provide an effective technique to improve ease of use in adjustment of the bevel angle of a circular saw body of a circular saw. The representative portable circular saw that includes a base, a circular blade, a circular saw body, a pivot, a locking device and a restricting arrangement. The locking device is manually operated by a user to lock the circular saw body to the base in a desired bevel angle position. Besides the locking device, the restricting arrangement prevents free pivotal movement of the circular saw body by holding the circular saw body at a predetermined common bevel angle position.

Abstract: A portable cutting tool includes: a cutting tool main body having a motor, a rotating blade and a saw cover for covering a part of the rotating blade, a base including a slide surface and a supporting part, and a guide including a pole supported by the supporting part, and a guiding part having a guide surface substantially orthogonal to the slide surface. An interposition member can be disposed so as to interpose between the guide and a side end of the base. The distance between the rotating blade and the guide surface is adjustable by changing a position of the guide. The portable cutting tool includes a contact preventing unit is provided for regulating an adjustment range of the guide to prevent contact of the guide surface and the rotating blade when the guide is attached to the base with the interposition member removed.

Abstract: A portable electric cutting device includes housing, a saw blade, a saw cover, a base linked to the housing, and a centrifugal fan. The saw cover has a partition wall formed with a plurality of division walls including front and rear divisional walls. The plurality of division walls have an inclined part that extends at an angle with respect to a radial direction of the rotary axis of the fan such that a radially outer part of the inclined part locates upstream from a radially inner part of the inclined part with respect to the rotary direction of the fan.

Abstract: In a portable electric circular saw (portable cutting tool) including a cutting tool body having a motor serving as a driving source and a saw blade (cutting tool) driven to rotate by the motor and a base guiding the cutting tool body along a surface of a material to be cut, and allowing a parallel ruler to be mounted on the base, guide bars respectively inserted through insertion holes formed in the base are provided with a dust guard that can slide parallel to an end face of the saw blade and can abut against the end face of the saw blade.

Abstract: A circular saw includes a housing assembly and a drive motor assembly coupled to the housing assembly. An output member is driven by the drive motor assembly. A shoe is adjustably mounted to the housing assembly. A circular saw blade has a diameter of about 7.3 inches. The shoe can be adjusted to provide a depth of cut that is greater than or equal to about 3.0 inches.

Abstract: A movable handle and a power tool. The power tool comprises a housing, a motor supported by-the housing and operable to drive a tool element about an axis, and a handle supported by the housing for rotation relative to the housing about the axis. Preferably, the power tool is a circular saw. The circular saw further comprises a switch assembly supported on the handle for movement with the handle and means for connecting the switch to the motor to accommodate movement of the switch relative to the motor. The switch assembly is electrically connectable to the motor and selectively connects the motor to a power source, and the connecting means includes a wiring arrangement. The circular saw further comprises a locking assembly for locking the handle in a position relative to the housing.

Abstract: The present invention provides an anti-kickback for arresting movement of a rail accommodated within an elongate channel. The anti-kickback device includes a slide member arranged to slide along a slide surface between an extended position and a retracted position. The device further includes a resilient member, housed in a sleeve, which biases the slide member along the slide surface. The slide member, when in the extended position, is designed to urge the rail into abutment with a wall of the channel to arrest movement of the rail accommodated within the channel.

Abstract: A protective cover of a hand-held cut-off machine has a bracket that is secured on the exterior side of the protective cover. The bracket is locked in at least one locked position with at least one locking projection in at least one receptacle of the protective cover. The bracket is releasable from the locked position by a movement of the bracket in the release direction. A simple release of the bracket can be achieved in that the protective cover has means that move the locking projection upon movement of the bracket in the release direction at least partially out of the receptacle.

Abstract: A circular saw has one or more louvers in the housing which direct air exiting the housing toward a work piece, together with openings in other components of the saw located between the louvers and the work piece so that sawdust and other debris that is produced during operation of the saw will be blown out of the way and will not interfere with the line of sight of the user.

Abstract: SHINGLESAW™ is a pneumatically powered miniaturized circular saw designed especially for roofing applications. A planetary gear set is provided to reduce the RPMs of the saw an increase torque, allowing the saw to cut though heavy and sticky roofing materials even when used with a low CFM roofer's compressor.

Abstract: A portable circular saw has a housing and a baseplate. The housing carries a motor which is connected to a blade through a transmission mechanism. The baseplate includes a main baseplate and a secondary baseplate each of which has a bottom surface and the bottom surfaces are coplanar. At least a part of the blade passes though a slot formed in the main baseplate. The main baseplate includes a first edge and a second edge disposed on opposing sides of the blade. The secondary baseplate has at least two exchangeable positions. In a first position, the secondary baseplate is jointed or adjacent to the first edge of the main baseplate and, in a second position, the secondary baseplate is joined or adjacent to the second edge of the main baseplate.

Abstract: A portable cutting tool includes a saw blade for cutting a workpiece, a cutting tool main body having a motor for driving to rotate the saw blade, a base for guiding the cutting tool main body along a surface of the workpiece, and an inclining mechanism for inclining the base by pivoting the base centering on a support shaft of the cutting tool main body. The inclining mechanism includes a first circular arc member provided to be contiguous to at least one of a front end portion and a rear end portion of the base, pivoted along with the base centering on the support shaft and having a first guide hole in a circular arc shape penetrated in a radius direction thereof, and includes a fixing unit for fixing a position of pivoting the base relative to the cutting tool at an arbitrary position the first guide hole.

Abstract: Provided is an apparatus for lifting a retractable lower safety-guard on a circular saw. In one representative implementation, an actuator is attached to the circular saw and an elongated arm is coupled to the actuator such that operating the actuator causes the elongated arm to lift. In addition, an engagement element is attached to the retractable lower safety-guard of the circular saw. When lifted, the elongated arm engages the engagement element, thereby retracting the retractable lower safety-guard of the circular saw. Preferably, the actuator is configured, and is located sufficiently close to a power switch for the circular saw, so that the actuator can be operated simultaneously with the power switch using a single hand. Also provided are retrofitting techniques for attaching such a device to an existing circular saw.

Abstract: The invention concerns a portable cutting device for cutting different sized objects. It includes a frame, a circular blade and a guiding guard mounted to the frame and around the blade. The guiding guard includes first and second projections extending beyond the periphery of the blade. Each projection has an edge being spaced-apart from and facing the other edge, and defining there-between a cutting area having a peripheral entrance. This enables an insertable object to be cut as it is guided into the blade along the edge facing the rotation direction, and a partially insertable object to be partially cut as it abuts against borders of the peripheral entrance. It also includes a protector removably mounted around the peripheral entrance to removably cover it. The invention also concerns a guard with adjustment elements movably mounted thereto to adjust the dimensions of the cutting area.

Abstract: A woodworking machine is disclosed. The machine includes a cutting tool and a motor adapted to drive the cutting tool. The machine further includes a detection system to detect a dangerous condition between the cutting tool and a person, such as a person coming into contact with the cutting tool. A reaction system is provided to disable the cutting tool, such as by covering, blocking, destroying, wrapping, etc., upon detection by the detection system of the dangerous condition.

Abstract: A battery powered circular saw includes a rechargeable battery removably attached to the housing and an adjustable shoe pivotally attached to the housing for controlling a depth of cut. A locking mechanism for preventing relative movement between the adjustable shoe and the housing includes a clamp that is located so as to permit the battery pack to be inserted to and removed from a rear end of the housing in a direction that is generally parallel to a plane in which the circular saw blade is disposed.

Abstract: A self-contained vacuum circular saw is presented. The vacuum saw has a casing around the saw blade that includes an accordion type lower section attached to the lower platform of the saw. A number of vacuum tubes, preferably four, are attached to the side of the circular saw opposite the blade. The armature of the circular saw that turns the blade also turns the vacuum impeller on the side opposite the blade. An impeller vacuum chamber pulls in the dust and debris created by the saw blade and discharges the dust and debris into a disposable and removable vacuum bag. An important aspect of this device is that the motor that turns the saw blade also turns the impeller, thus making the self-contained vacuum Saw moveable from site to site.

Abstract: Embodiments of an accessory attachment for a rotary power hand tool are disclosed wherein the hand tool is of the type which has a tool housing with a preferably cylindrical nose portion, a motor having a motor drive shaft with a mounting coupling extending forwardly from the nose portion for receiving a drive shaft, the attachment comprising a housing having a first end portion configured to be mounted to the tool housing nose portion and an input shaft for coupling to the motor drive shaft, and having an enlarged second end portion oriented at a right angle relative to the first end portion and also having an output shaft coupled to the input shaft at a right angle relative thereto, a rotary cutting wheel mounted to the output shaft and substantially disposed within said enlarged second end portion, excepting an exposed portion of the rotary cutting wheel for engaging a work surface, an adjustable guide foot pivotally connected to the enlarged second end portion and having a front surface configured to abut

Abstract: A movable handle and a power tool. The power tool comprises a housing, a motor supported by the housing and operable to drive a tool element about an axis, and a handle supported by the housing for rotation relative to the housing about the axis. Preferably, the power tool is a circular saw. The circular saw further comprises a switch assembly supported on the handle for movement with the handle and means for connecting the switch to the motor to accommodate movement of the switch relative to the motor. The switch assembly is electrically connectable to the motor and selectively connects the motor to a power source, and the connecting means includes a wiring arrangement. The circular saw further comprises a locking assembly for locking the handle in a position relative to the housing.

Abstract: A portable cutting tool includes a base and a tool main body which are inclinably connected such that a saw blade can be projected from a vicinity of an intersection between a side face of the base and a lower face of the base. A parallelism between the saw blade and the side face of the base is made to be able to be adjusted.

Abstract: A portable electric cutting apparatus includes a housing for housing an electric motor for rotating a saw blade a fan provided in the housing and driven by the electric motor, a saw cover attached to the housing and having a saw blade housing part having a shape to cover an upper half of the outer periphery of the saw blade for housing a part of the saw blade, a base formed with an opening for allowing the saw blade to project downward from a bottom face which is slidable on a cut material. A discharge passage for discharging a fan wind produced by driving the fan is formed along an outer periphery of the saw cover. The fan wind is discharged through the discharge passage toward a front side of the base in the cutting direction.

Abstract: Fanned air generated by a fan to cool a motor is discharged from a housing through fanned air discharge ports toward an opening formed in a base. The fanned air discharged toward the opening is then introduced into a groove in fluid communication with the opening. The groove is formed in a bottom surface of the base and has an open side at a front side of the base. The fanned air is then discharged from the front side of the base, blowing off saw dust on a cutting object so as to prevent dust from accumulating on a marking line on the cutting object.

Abstract: A metal cutting circular saw is provided with an upper blade guard which includes a first sight window disposed in a first side surface and disposed in a plane angularly offset from a plane of the blade. The upper blade guard also includes a second sight window disposed in the second side surface of the upper blade guard. A light window is disposed in a front portion of the perimeter outer surface of the upper blade guard. The upper blade guard is made from metal and the first and second sight windows and the light window are integrally formed as a one-piece member. The saw shoe and lower blade guard are configured to minimize chip spray from contacting a user.

Abstract: A glass cutting apparatus has a spindle rotatably held and a saw blade provided on the spindle at a tip portion thereof. An upper portion of the blade is covered with a top cover. A lower portion of the blade, which protrudes from a lower portion of the top cover downward, is covered with a swingably safety cover held through a second ball bearing provided at an outer periphery of a bearing case. A fixing member between the bearing case and the blade is provided with a seal cover member which has a tip portion extending to the neighborhood of an outer periphery of a seal member for covering the bearing. Thereby, the seal cover member covers the seal member on a blade side thereof. Thus, the glass-cutting apparatus can eliminate a danger of touching its saw blade by mistake at the time of non-operation.

Abstract: A movable handle and a power tool. The power tool comprises a housing, a motor supported by the housing and operable to drive a tool element about an axis, and a handle supported by the housing for rotation relative to the housing about the axis. Preferably, the power tool is a circular saw. The circular saw further comprises a switch assembly supported on the handle for movement with the handle and means for connecting the switch to the motor to accommodate movement of the switch relative to the motor. The switch assembly is electrically connectable to the motor and selectively connects the motor to a power source, and the connecting means includes a wiring arrangement. The circular saw further comprises a locking assembly for locking the handle in a position relative to the housing.

Abstract: Fanned air generated by a fan to cool a motor is discharged from a housing through fanned air discharge ports toward an opening formed in a base. The fanned air discharged toward the opening is then introduced into a groove in fluid communication with the opening. The groove is formed in a bottom surface of the base and has an open side at a front side of the base. The fanned air is then discharged from the front side of the base, blowing off saw dust on a cutting object so as to prevent dust from accumulating on a marking line on the cutting object.

Abstract: A movable handle and a power tool. The power tool comprises a housing, a motor supported by the housing and operable to drive a tool element about an axis, and a handle supported by the housing for rotation relative to the housing about the axis. Preferably, the power tool is a circular saw. The circular saw further comprises a switch assembly supported on the handle for movement with the handle and means for connecting the switch to the motor to accommodate movement of the switch relative to the motor. The switch assembly is electrically connectable to the motor and selectively connects the motor to a power source, and the connecting means includes a wiring arrangement. The circular saw further comprises a locking assembly for locking the handle in a position relative to the housing.

Abstract: A circular saw (1) includes a base plate (2) and a saw blade assembly (3) including a lower blade guard (9) for covering a saw blade (6). The blade guard includes a sleeve portion (10) rotatably fitted on a bearing box (8) coupled to the saw blade assembly and a sectoral portion (11) extending radially from the sleeve portion in the rear of the blade. A connecting bar (13) projects radially rearward from the sectoral portion. A spring (14) is stretched between the top of the connecting bar (13) and a lower rear portion of an upper blade guard (4) close to the base plate. When not in use, torque, generated as the product of the spring's tensile force and the perpendicular distance (S) from the line of action or the force to the axis of rotation (O), rotates the blade guard to a closed position.

Abstract: A metal cutting circular saw (10) is provided with an upper blade guard (20) which includes a first sight window (46) disposed in a first side surface and disposed in a plane angularly offset from a plane of the blade (14). The upper blade guard (20) may also include a second sight window (62) disposed in the second side surface of the upper blade guard (20). A light window (64) is disposed in a front portion of the perimeter outer surface of the upper blade guard (20). The saw shoe (24) and lower blade guard (22) are configured to minimize chip spray from contacting a user.

Abstract: A saw guard system for enhancing the safety of use of powered hand saws by eliminating the need to hold the blade guard in a static position during the cutting operation. The saw guard system includes a circular saw with a housing, a motor positioned within the housing, a shaft extending from the motor through a wall of the housing, a blade operationally coupled to the shaft, and an upper blade guard for covering a perimeter edge of the blade above the shaft; a lower guard member pivotally coupled to the housing, a guard member motor coupled to the housing and the lower guard member for moving the lower guard member from the deployed position to the stored position; the guard member motor is operable separately from the motor of the circular saw; and a gear assembly operationally coupling the guard member motor to the lower guard member.

Abstract: A battery powered circular saw includes a rechargeable battery removably attached to the housing and an adjustable shoe pivotally attached to a guard assembly for controlling a depth of cut. A locking mechanism for preventing relative movement between the adjustable shoe and the housing includes a depth of cut strap disposed adjacent a first sidewall of the housing. A lever is disposed adjacent a second sidewall of the housing. A tightening element interconnects the depth of cut strap and the lever. The battery powered circular saw additionally includes a handle extending from the housing. The handle is disposed substantially parallel to a direction of cut and oriented horizontally above the housing. The rechargeable battery pack includes a pair of laterally spaced apart guide rails which cooperate with the pair of longitudinally extending grooves to permit sliding movement of the rechargeable battery pack in a direction parallel to the direction of cut.

Abstract: A cutting tool includes a saw blade and a blade case adapted to cover the saw blade. A light may have a light for illuminating a portion of a workpiece that will be cut by the saw blade during a cutting operation. The light may be mounted within the blade case, so that the light is laterally displaced from the saw blade. A mounting device may be utilized to receive the light and the mounting device may be disposed within the blade case.

Abstract: A battery-operated hand power tool (10), in particular a power saw (101), having a housing (12) into which a battery pack (28) can be detachably inserted in captive fashion, and between the battery pack (28) and the housing (12), an elongated auxiliary tool (38) is stored, in particular for releasing the tool, preferably the saw blade, is made more secure and convenient to manipulate by disposing the auxiliary tool (38) in such a way that it is visible from outside and is easy to feel, and in particular can be reached through.

Abstract: A lapping machine operable with a lap wheel for lapping gold jewelry and adapted to collect gold dust produced by the lapping machine, includes: (a) a base, (b) an electric motor mounted to the base, the electric motor having a rotatable output shaft extending upward and adapted to be coupled to the lap wheel which is situated above the electric motor and rotates about the axis of the output shaft, with a gold dust debris space defined as the area surrounding the lap wheel and extending from below the lap wheel downward and surrounding at least part of the output shaft, (c) a shroud comprising rear and opposite side parts that surround the rear and opposite sides of the gold dust debris space respectively, thus leaving the front of the gold dust debris space open and accessible, the shroud including a continuous front wall and a continuous rear wall spaced radially outward of the front wall, with air flow passages defined between the front and rear walls of the rear and side parts, the front walls of the side

Abstract: A hand-held power tool includes a cutting blade within a housing (5) and a guard (10) placed over the operating head of the tool. The guard is movable in the direction (1) in order to expose the blade during cutting. The sliding mechanism is improved by maintaining alignment between the guard and the head over a larger distance. In one embodiment, this is achieved by sliders (FIG. 8) in grooves (9). Contact over a larger range reduces the likelihood of jamming and improves handle precision. Alternative embodiments provide structure for indicating the blade position (FIG. 11), and a frangible retaining washer for disengaging the cutting blade (FIGS. 13 to 15).

Abstract: Fanned air generated by a fan to cool a motor is discharged from a housing through fanned air discharge ports toward an opening formed in a base. The fanned air discharged toward the opening is then introduced into a groove in fluid communication with the opening. The groove is formed in a bottom surface of the base and has an open side at a front side of the base. The fanned air is then discharged from the front side of the base, blowing off saw dust on a cutting object so as to prevent dust from accumulating on a marking line on the cutting object.

Abstract: A sawing machine has a casing, a moveable cover and a saw blade both pivotally mounted inside the casing. Two block rings are respectively mounted at two lateral sides of a pivoted portion of the moveable cover for preventing sawing chips generated by the saw blade sawing a workpiece in a sawing procedure from entering the pivoted portion of the moveable cover.

Abstract: It is an object of the present invention to provide a technique for making the effective use of cooling air for a motor within a power tool in order to rationalize the structure of the power tool. The representative power tool may comprise a tool bit case, a tool bit, a drive motor and a cooling air guiding member. The tool bit is provided within the tool bit case and performs a predetermined operation on a workpiece. The drive motor drives the tool bit. The cooling air guiding member guides cooling airfor cooling the drive motor to a work area of the workpiece to be worked on with the tool bit, when the cooling air is discharged into the tool bit case. By such construction, the representative power tool can have rationalized structure that cooling air for cooling the drive motor of the power tool can also be utilized to clean the work area of the power tool.

Abstract: A hand-held tool for quickly and easily removing duct material surrounding a fiber optic cable. The tool contains a motorized saw blade, with an adjustable depth of cut gauge formed integral with the cutting floor. In use, a technician first determines the thickness of a particular duct to be removed, then adjusts the depth of cut for the saw blade to provide the desired cut without damaging the underlying fibers. Once adjusted, the technician can then turn on the tool, which activates the saw blade and effectuates the desired cut (either axial or radial).

Abstract: A hand held rotary blade saw with a motor, rotary saw blade, driving connection between the motor and the blade, two pivotable forward blade guards with top and bottom hand manipulable pivot members for exposing either a left or right blade sector for cutting, or an upward or downward blade sector when the blade is vertically oriented by twisting the wrist. The switch is operable by the thumb or the finger, such that left and right handed users have operational parity regardless of blade orientation, which hand is holding the saw, or whether the thumb or finger is operating the switch. Parallel receding blade guard edges form a forward notch enabling forward cutting. The blade is interchangeable and a carrying case, belt holster attachment, and special battery charger are provided. The battery charger charges the battery while the battery is in the saw or when it is removed.

Abstract: A tool guard attachment for a rotary hand tool of the type which has a housing with a nose portion from which an output shaft protrudes and which typically has a mechanism for holding tool bits or implements is disclosed. The tool guard attachment, which mounts to the nose portion of the rotary hand tool, has a guard housing with an enlarged guard portion at the outer end thereof which provides a shield or guard for a flat circular tool implement that is mounted on an arbor shaft assembly that in turn is connected by a U-joint to a drive shaft assembly at an acute angle relative to the arbor shaft assembly. The drive shaft assembly engages a driver nut or the like that is mounted to the output shaft of the rotary hand tool. The angle between the drive shaft and the arbor shaft is offset about 10 to 30° so that the rotary hand tool itself does not interfere with the cutting blade engaging a work surface at a perpendicular angle during operation.

Abstract: Power tools, such as, saws and circular saws, and methods. In some constructions and in some aspects, a saw includes a housing, a motor, a cover, and a quick-locking member operable to releasably lock the cover to the housing without tools. In some constructions and in some aspects, a saw includes a housing, a motor, a first cover connected to the housing, the first cover at least partially covering a saw blade, and a second cover selectively connectable to the housing, the second cover at least partially covering the first cover and at least partially covering the saw blade. In some constructions and in some aspects, a method of disassembling a saw including moving a locking member from a first position to a second position without the use of tools, and removing a cover from a housing to at least partially uncover the saw blade.

Abstract: A circular saw (1) cutting a workpiece at a generally right-angled corner formed between the workpiece and a structure is provided. The saw (1) includes a base plate (2) and a saw blade assembly (3) which has a saw blade (5) rotatably attached thereto and is tiltably mounted on the base plate by first and second pins (12,15) aligned with each other and oriented parallel to the saw blade. This arrangement permits the saw blade (5) to be manually tilted in two directions to desired angles with respect to the base plate (2) within a predetermined range. When the saw blade (5) is disposed at 90 degrees relative to the top surface of the base plate (2), the common longitudinal axis (O2) of the first and second pins (12) and (15) is spaced apart from the center plane (L) of the saw blade (5) toward the motor by a predetermined distance (S) as measured along a path orthogonally intersecting the center plane and the axis.

Abstract: A circular saw for more precise movement during cutting with a laser alignment system for projecting a maker onto a workpiece to align with a target line to be cut. The laser alignment system comprises a housing, a laser generator, an internal battery which can be replaced without the aid of a tool, a switch which can be independently positioned within the housing and be turned on or off independently or a switch which can be positioned near the main switch of the circular saw and be actuated together with the main switch. The laser line projected by the laser alignment aligns with the plane of a saw blade of the circular saw. Thus, the saw blade can follow the target line by aligning the laser line with the target line.

Abstract: A circular saw including a motor housing having a first end portion and a second end portion, a motor assembly disposed within the housing, a rotary blade assembly having a predetermined weight mounted to the first end portion of the motor housing, and a battery pack having a predetermined weight disposed on the second end portion of the motor housing. The battery pack and the rotary blade assembly are configured and arranged to be in longitudinal alignment with one another, and the longitudinal alignment of the battery pack with the rotary blade assembly promotes counterbalancing between the predetermined weight of the rotary blade assembly and the predetermined weight of the motor housing.

Abstract: A battery-operated hand power tool (10), in particular a power saw (101), having a housing (12) into which a battery pack (28) can be detachably inserted in captive fashion, and between the battery pack (28) and the housing (12), an elongated auxiliary tool (38) is stored, in particular for releasing the tool, preferably the saw blade, is made more secure and convenient to manipulate by disposing the auxiliary tool (38) in such a way that it is visible from outside and is easy to feel, and in particular can be reached through.

Abstract: A line-of-cut indicator for use with a cutting tool including a pointer element that may be moved between an open position substantially in front of the footplate of the cutting tool and a closed position substantially behind the front of the footplate of the cutting tool. The pointer element may be moved between the open and closed positions by rotating or sliding. The pointer element may provide one or multiple reference points for the line-of-cut.

Abstract: Portable circular saws are taught that may include a base and a saw unit pivotally coupled to the base. The saw unit may have a circular saw blade that is adapted to laterally pivot relative to the base. A stopper may be provided to allow an operator to selectively stop the saw unit at a second pivot angle that is between a first pivot angle and a third pivot angle. Preferably, the stopper may have an operative position and a non-operative position. In the operative position, the saw unit can pivot from the first pivot angle to the third pivot angle without stopping at the second pivot angle. In the non-operative position, the saw unit can pivot between the first pivot angle and the second pivot angle. A first stopper may be provided to permit the saw to be selectively stopped at a small angle pivot position (e.g. 0°) before a minimum pivot angle (e.g. −5°). A second stopper may be provided to permit the saw to be selectively stopped at a large angle pivot position (e.g.

Abstract: An undercut saw (10) having a central axis (11) generally comprises a cutting assembly (20) and a base (60). Cutting assembly (20) comprises case (30) housing electric motor (24) driving blade (50). Base (60), supporting cutting assembly (20) above a support surface, comprises cylindrical sleeve (63), supporting case (30) such that central axis (11) is vertical, and shroud (61) terminating in foot (98) for resting on a support surface. Case (30) and sleeve (63) are cooperatively adapted such that case (30) may be selectively moved vertically within sleeve (63) and retained in the selected position so as to adjust the height of blade (50) relative to foot (98). Vacuum attachment (100), immediately adjacent cutting area (53) to maximize collection, vacuums cuttings from blade cavity (97). Blade guard (132) rotates to an extended position covering cutting area (56) of blade (50) so as to include cutting area (56) in blade cavity (97).

Abstract: A circular saw 30 includes a housing 32, a fixed upper guard 34, a movable lower guard 36 and a shoe 38. A saw motor 48 is selectively operated to rotate a circular saw blade 54 to facilitate the formation of a selective cut or kerf into a workpiece 57 under the control of an operator. A forward end 126, and a wing wall 138, of the upper guard 34 form an enclosed chamber 122 which is placed in close proximity with an adjacent surface 46 of the shoe 38 to essentially preclude chips from discharging through a slight space 39 therebetween. A trailing peripheral portion 148 of the upper guard 34 is formed with an inner radial path for receiving the lower guard 36 within the upper guard, and an outer radial path for management and directing of chips to a rear end 130 of the upper guard for discharging of the chips. A pair of stripes 102 and 104, and a sight window 90, are located on a forward portion of the surface 46 of the shoe 38 to assist an operator of the saw 30 in the accurate formation of the kerf.