Abstract: The invention relates to an operating method for a power tool (1), whereby it is monitored whether the working tool (7) has reached a predetermined position of application relative to a workpiece and whether it has maintained said position of application over a minimum period (t) and the tool (1) is only released for the working operation once the minimum period has expired.

Abstract: The present invention is an attachable rolling plate assembly which can be attached as a single unit to a portable cutting tool to facilitate the safe rolling movement of the portable cutting tool on the workpiece. The invention comprises a frame assembly formed from a single piece of molded material such as fiber enriched plastic having a pair of oppositely disposed longitudinal sidewalls with stabilizer fins extending therefrom, and a flat base portion having a pair of parallel stabilizer tubes molded therein. The invention further includes an adjustable bevel gear assembly by which the angle of orientation of the cutting blade can be quickly changed. The invention also includes a cutting guide assembly to facilitate a straight cut, reduce torsional rotation of the saw blade and reduce kickback of the saw.

Abstract: The invention relates to a hand-held jigsaw, especially a compass saw, having a housing and a lifting rod with a pendulum mechanism, especially a pendulum lever, with which a pendulum stroke can be given during sawing to a saw blade carried by the lifting rod, especially a jigsaw blade. According to the invention, the hand-held jigsaw can be used more safely and in more special applications as the lifting rod is arranged such that it can rotate about the axis thereof and pivot transversely to the axis, and the pendulum mechanism can rotate about the axis.

Abstract: The invention relates to a power tool (1), which is designed as a jigsaw (2) and which comprises a rear support (2) for the saw blade (8) at a right angle to the rotational axis (22) of the saw blade (8). Said driven support (20) allows adjustment of the saw blade (8) in different angular positions in the rotational direction around its rotational axis (22).

Abstract: Cutting tools (1) may include a lighting device (5). The lighting device may be mounted on a tool unit (3) adjacent to a grip portion (26). Preferably, the grip portion serves to protect the lighting device from being damaged by an external force. The tool unit may include a motor case (21) for accommodating a motor. The grip portion may extend from the motor case and the lighting device may be mounted on or within the motor case. The tool unit may further include a blade case (20) that at least partly covers a cutting blade (22). The blade case may be joined to the motor case via a joining portion J defined on the motor case. In this case, the lighting device is preferably disposed proximal to the joining portion. The lighting device may include at least a first light (5a) and a second light (5b) that are arranged and constructed to illuminate different areas.

Abstract: An electric cutting tool includes: a surface plate; a body portion tiltably provided on the surface plate; and a circular saw blade capable of rotating by means of driving power from a driver. A movement amount measuring section measures a movement amount of the body portion with respect to the surface plate in response to a tilting action. A calculating section calculates a cutting depth of the circular saw blade or an inclination angle of the body portion on the basis of the movement amount measured by the movement amount measuring section. A display section displays the cutting depth or the inclination angle of the body portion calculated by the calculating section. The movement amount measuring section includes: a scale section installed on any one of the surface plate and the body portion; and a scale detecting section installed on the other.

Abstract: A pivotable shoe assembly, for use on a reciprocating saw having a housing and a saw blade, includes a shoe support coupled to the housing and having a longitudinal axis. The shoe support includes a base member extending at least partially along the longitudinal axis to define a first plane. The shoe assembly further including a shoe pivotably coupled to the shoe support. The shoe includes a contact surface defining a second plane and a blade recess defined by the contact surface to allow the saw blade to pass therethrough. The shoe further includes plurality of locking positions, each locking position corresponding to an engagement angle, where the engagement angle is defined as the angle between the first plane and the second plane.

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, and a base for guiding the cutting tool main body along a surface of the workpiece. A cut depth of the saw blade projected from a lower face of the base is made to be able to be adjusted by pivoting the cutting tool main body centering on a support shaft connected to the base. The portable cutting tool is provided with a mechanism for fixing the cut depth at a preset position when the cut depth of the saw blade is gradually increased from a minimum cut depth.

Abstract: Saw equipment which is applicable to saws which incorporate a jig saw blade or disk, enabling to carry out cuts with variation in the inclination of the cuts by placing the saw or disk with those inclinations with respect to a support base which forms part of the saw set. It is characterized in that it incorporates a characteristic first device for precisely and securely setting the saw or disk at the appropriate inclination. It also includes a second device for also precisely controlling the direction of the cuts.

Abstract: A circular saw has a housing, a direct current motor, a battery assembly, a handle having first and second ends, a circular saw blade and a base plate. The motor is located outside of an area defined by the radius of the circular blade and between the first and second ends of the handle and the blade is laterally aligned with the handle. The circular saw also has a center of gravity which lies close to the plane defined by the saw blade, is below the handle and is within the length of the base plate. As a result of this arrangement, the circular saw of the present invention reduces the influence of the torque created during a cutting operation and improves the balance and operation of the circular saw.

Abstract: The present invention is an attachable rolling plate assembly which can be attached as a single unit to a portable cutting tool to facilitate the safe rolling movement of the portable cutting tool on the workpiece. The invention comprises a front wheel housing portion, a back wheel housing portion, and two or three metal rods which interconnect the two housings. The housings removably retain a pair of spaced apart wheels and means to retain a cutting tool on the housings so that the cutting tool can be rolled on the workpiece during operation of the tool while the cutting blade portion of the tool extends between a pair of adjacent interconnecting rod members. The front and rear wheel housing assembly receives the cutting blade in between its pins or axles, so that the entire width of the saw plate is supported by the wheels during cutting.

Abstract: A machine tool, in particular in a handheld configuration, that is equipped with tools for a sensory detection of a trajectory that serves as a guideline and is detected in characteristic values and read in, alternatively to a programmed trajectory. The characteristic values that are on a side of the machine tool are converted into control signals for a working line that is tracked mark-free.

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 circular saw is provided with a saw blade, a saw blade guard, and an adjustment bracket connected to a base plate to selectively adjust the base plate with respect to the saw blade, wherein a portion of the adjustment bracket is visible through at least a portion of the saw blade guard.

Abstract: A reciprocating saw includes a housing and a support shoe mounted on the front end of the housing which is adjacent to a saw blade. The support shoe includes a guide plate which is partly mounted in the housing and is movable thereabout, and a base plate pivotally connected to the guide plate. The guide plate has a series of recesses or apertures. The reciprocating saw also includes a locking member which is movable in the housing along a first direction and at least a portion of which could be engaged with any one of the recesses or apertures, and an adjusting member which is movable along a direction perpendicular to the first direction from a first position to a second position. T he locking member is disposed between the adjusting member and the guide plate.

Abstract: A jigsaw generally includes a housing containing a motor activated by a trigger assembly. The housing defines a window. A shoe member pivotally connects to the housing. An indicator wheel is disposed in the housing so that a portion of the indicator wheel is visible through the window, wherein pivoting of the shoe member relative to the housing causes the indicator wheel to rotate.

Abstract: A preferred embodiment of the present invention comprises a foot assembly for a power hand tool such as a jigsaw that has an angularly adjustable support foot with a generally flat bottom, at least two spaced apart supports connected to the support foot, an elongated rod extends through apertures in the supports in a configuration that permits limited sliding movement and the angular adjusting movement of the support foot relative to the hand tool, a retainer member associated with the hand tool that selectively engages one of the supports to lock the support foot at predetermined angular positions, and a spring biases the retainer member toward engagement with the support. A second embodiment includes a removable transparent plate that attaches to the support foot and has a faux laser line for a cutting aid.

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: 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: The invention provides a hand-held circular saw comprising a base plate and a cutting unit pivotally mounted on the base plate. The cutting unit includes a saw blade, a motor driving the saw blade, and a fixed guard covering at least a part of the saw blade. A guide plate with an arc-shaped slot extends from the base plate. A connecting member or bracket has a first end that is mounted to the cutting unit and a body portion operably connected to the guide plate by a locking element, namely a bolt, and a lever. Once released, the lever allows for movement of the bracket and the blade with respect to the guide plate. A stopper is mounted on the guide plate and is movable between a first position and a second position. In the first position, at least a part of the stopper intercepts the arc-shaped slot and stops the bolt from moving further within the arc-shaped slot.

Abstract: The present invention discloses an adjustable base for a portable saw and a portable saw therefore. The base includes a longitudinal shell secured to the housing, and mounted to a baseplate. A shaft is mounted to the housing extending through a slot formed in the shell. A collar is connected to the shaft and has a first cam surface cooperating with a corresponding second cam surface of the housing. Rotation of the collar in an unlocked direction extends the shaft away from the housing. A clamp member is received within a shell inner region and cooperates with the shaft. The shaft is threadably engaged to one of the collar, the housing or the clamp member so that rotation of the collar in the unlocked direction either extends the shaft further away from the housing or extends the clamp member along the shaft away from the housing.

Abstract: A circular saw assembly of the type that includes a motor housing, a handle coupled to the motor housing, a generally circular saw blade disposed within a blade housing at a first end of the motor housing, and a foot member through which the blade extends for guiding the saw assembly along a work surface, where the circular saw assembly including a depth of cut locking system and an angle of cut locking system. The depth of cut locking system includes an arcuate bracket with an arcuate slot, and an engagement member extends through the slot and is operatively connected to the motor housing and slideable in the arcuate slot. The angle of cut locking system includes a bracket having an arcuate slot and an engagement member movable in the slot and configured to the bracket. A biasing member is provided to bias the engagement member, and at least one detent recess is provided to retain the engagement member therein.

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: 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 power hand tool foot assembly includes a platform having an arch portion. A swivel lock is within the arch portion, with a mount connecting the swivel lock to the tool housing. A lever is pivotally mounted on the mount. When the lever is in a locked position, the swivel lock and platform are locked in place. When the lever is in an open position, the longitudinal and angular position of the platform and swivel lock may be adjusted.

Abstract: A power saw includes a body (36) housing a motor (24). The motor drives a reciprocal shaft (2) on which a blade (12) is mounted. The body is coupled to a pivotable sole plate (48,50) which is held relative to the body (36) in a plurality of positions such that in at least one position the sole plate may act as a guide for use of the tool as a jigsaw.

Abstract: A mechanism is disclosed for clamping a jigsaw (1) shoe in a desired position relative to the body of a power tool. A plurality of gear (22, 26) teeth are used to allow greater torque and access as compared to prior art clamping mechanisms.

Abstract: A miter saw including a base portion and a main body portion laterally tiltable and vertically pivotable. The main body portion includes a circular saw blade whose one side is provided with a power transmission mechanism. The mechanism includes a motor shaft pulley fixed to a motor shaft of a motor, a saw blade shaft extending in parallel with the motor shaft and an intermediate shaft extending in parallel with the saw blade shaft and positioned between the motor shaft and the saw blade shaft. On the saw blade shaft, a first saw blade shaft bearing, a flanged abutment portion, a gear and a second saw blade shaft bearing are arrayed in an order from the circular saw blade. On the intermediate shaft, a pinion meshedly engaged with the gear, a first intermediate shaft bearing in alignment with the second saw blade shaft bearing, an intermediate shaft pulley in alignment with the motor shaft pulley and a second intermediate shaft bearing are arrayed in this order from the circular saw blade.

Abstract: A portable circular saw providing high visibility to a cutting mark line and sufficient operability even in case of an angled cutting. A slant position fixing member upstands from a front side of a base, and a tiltable plate is provided pivotally to the base. A front end of a saw cover is connected to the tiltable plate by a pivot pin. A main body roratably supporting a circular saw blade is pivotally movable by a pivotal movement of the tiltable plate to change inclination of the circular saw blade relative to the base. The tiltable plate is positioned in confrontation with the slant position fixing member, and fastening unit fixes the tiltable plate to the slant position fixing member to maintain a desired inclination of the circular saw blade. The fastening unit includes a thread extending through an arcuate slot formed in the slant position fixing member and engaging the tiltable plate, and a lever fixed to one end of the thread.

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 circular saw (1) includes a base (2) and a main body (3) mounted on the base and provided with an upper blade guard (7). Disposed behind the upper blade guard (7) is a stopper (22) which includes an upper curved portion (23) and an lower portion (24) coupled to the curved portion (23). One end of the lower portion (24) is attached to the main body (3) with a pivot screw (25) behind the blade guard (7) so as to permit the stopper to pivot on the screw (25) in parallel with a circular blade (5). Additionally, the curved portion (23) includes an arcuate guide slot (26). The stopper (22) further includes a fixing bolt (27) screwed in a boss (29) formed on the rear surface of the blade guard. The bolt (27) includes a lever (30) to be manually operated to selectively secure the curved portion to the bolt and release the curved portion therefrom. When the curved portion (23) is released, its pivotal position relative to the main body towards the base can be manually changed.

Abstract: A mechanism is disclosed for clamping a jigsaw (1) shoe in a desired position relative to the body of a power tool. A plurality of gear (22, 26) teeth are used to allow greater torque and access as compared to prior art clamping mechanisms.

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 method for cutting sheet material including positioning the material on an upper surface of a guide table having slots. A blade of a saw is aligned with one of the slots and the saw is energized. The blade is advanced through the sheet material with the blade in the slot to cut the material along a line corresponding to the slot. Apparatus for cutting sheet material is also disclosed. The apparatus includes a saw and a guide table including an upper surface having a plurality of elongate slots therein for receiving the saw blade to guide the saw along the surface.

Abstract: A circular saw including a frame, a drive means mounted to the frame coupled to a planar saw blade for rotation about a drive axis within a cutting plane and a base pivotably mounted to the frame about a first axis substantially parallel to the cutting plane and a second axis which is generally substantially parallel to the drive axis. In one aspect, the relative pivotal movement of the frame about the first axis is determined by a trim adjuster including disengageable position locator which is operable to provide a plurality of predetermined discrete engaged positions and a locking means for locking the position of the frame relative to the base over a continuous range of settings. The invention also provides a mounting assembly including a course adjustment means and a fine adjustment means to determine the pivotal movement of the frame about the second axis relative to the base.

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: A portable circular saw includes a base and a saw unit having a circular saw blade. The saw unit is coupled to the base, so that the saw unit can laterally incline relative to the base. The saw unit can be fixed in a lateral inclining position relative to the base by a tightening device. A stopper device can define a maximum lateral inclining angle of the saw unit and includes a stopper and an engaging mechanism for engaging the stopper. The stopper can move with the saw unit. The engaging mechanism is adapted to engage the stopper when the saw unit is in a first maximum inclined position and when the saw unit is in a second maximum inclined position that is greater than the first maximum inclined position.

Abstract: A portable circular saw providing high visibility to a cutting mark line and sufficient operability even in case of an angled cutting. A slant position fixing member upstands from a front side of a base, and a tiltable plate is provided pivotally to the base. A front end of a saw cover is connected to the tiltable plate by a pivot pin. A main body roratably supporting a circular saw blade is pivotally movable by a pivotal movement of the tiltable plate to change inclination of the circular saw blade relative to the base. The tiltable plate is positioned in confrontation with the slant position fixing member, and fastening unit fixes the tiltable plate to the slant position fixing member to maintain a desired inclination of the circular saw blade. The fastening unit includes a thread extending through an arcuate slot formed in the slant position fixing member and engaging the tiltable plate, and a lever fixed to one end of the thread.

Abstract: A machine tool, with a stop plate (2, 21), a working unit having a disk-shaped cutting tool (1, 17) and a driving mechanism (3), is connected pivotally with the stop plate (2, 21) for making angular and miter cuts. By means of several connecting link guides (4), mounted at the stop plate (2, 21), it is ensured that the cutting characteristics of the machine tool are independent of the pivoted position.

Abstract: A miter saw including a base portion and a main body portion laterally tiltable and vertically pivotable. The main body portion includes a circular saw blade whose one side is provided with a power transmission mechanism. The mechanism includes a motor shaft pulley fixed to a motor shaft of a motor, a saw blade shaft extending in parallel with the motor shaft and an intermediate shaft extending in parallel with the saw blade shaft and positioned between the motor shaft and the saw blade shaft. On the saw blade shaft, a first saw blade shaft bearing, a flanged abutment portion, a gear and a second saw blade shaft bearing are arrayed in an order from the circular saw blade. On the intermediate shaft, a pinion meshedly engaged with the gear, a first intermediate shaft bearing in alignment with the second saw blade shaft bearing, an intermediate shaft pulley in alignment with the motor shaft pulley and a second intermediate shaft bearing are arrayed in this order from the circular saw blade.

Abstract: A releasable footplate assembly for a jigsaw includes a shaft portion having a handle, a screw boss having a yoke, a base portion having a bridge portion through which the screw extends into the screw boss and a bridge plate, attached to the screw, releasably engaging the bridge portion.

Abstract: The present invention involves an air empowered circular saw apparatus for the cutting of material by either a left handed or a right handed operator. The apparatus includes an elongated base plate with a support frame extending from one side thereof; and an output housing supported on the distal end of the support frame, with an elongated drive motor housing supported on one side of the support frame. A saw blade is supported on the opposed side of the support frame, wherein the drive motor housing is swingable about an axis of rotation of an output shaft through the output housing to permit handed control of the air powered saw apparatus to be changed.

Abstract: A laser emitter projects a planer light beam to form an optical guideline on a work piece extending in a cutting direction of saw blade. The laser emitter is arranged behind, in the cutting direction, a tangential line of the circumference of the saw blade at an intersection of a bottom surface of the base and the circumference at a front side of the base in the cutting direction. The laser emitter forms the optical guideline behind the intersection in the cutting direction. The laser emitter is supported in respect of the saw blade slidingly in a direction defined by a rotation axis of the saw blade. The saw cover may have a window to transmit the laser beam toward the cutting point. A shutter selectively shutting the window may be provided.

Abstract: A circular saw (1) includes a base (2) and a main body (3) mounted on the base and provided with an upper blade guard (7). Disposed behind the upper blade guard (7) is a stopper (22) which includes an upper curved portion (23) and an lower portion (24) coupled to the curved portion (23). One end of the lower portion (24) is attached to the main body (3) with a pivot screw (25) behind the blade guard (7) so as to permit the stopper to pivot on the screw (25) in parallel with a circular blade (5). Additionally, the curved portion (23) includes an arcuate guide slot (26). The stopper (22) further includes a fixing bolt (27) screwed in a boss (29) formed on the rear surface of the blade guard. The bolt (27) includes a lever (30) to be manually operated to selectively secure the curved portion to the bolt and release the curved portion therefrom. When the curved portion (23) is released, its pivotal position relative to the main body towards the base can be manually changed.

Abstract: Cutting tools (1) may include a lighting device (5). The lighting device may be mounted on a tool unit (3) adjacent to a grip portion (26). Preferably, the grip portion serves to protect the lighting device from being damaged by an external force. The tool unit may include a motor case (21) for accommodating a motor. The grip portion may extend from the motor case and the lighting device may be mounted on or within the motor case. The tool unit may further include a blade case (20) that at least partly covers a cutting blade (22). The blade case may be joined to the motor case via a joining portion J defined on the motor case. In this case, the lighting device is preferably disposed proximal to the joining portion. The lighting device may include at least a first light (5a) and a second light (5b) that are arranged and constructed to illuminate different areas.

Abstract: A cutting device for tooling sandwich plates has as its cutting tool a cutting chain (5) with cutting elements in the form of chain links (27, 28, 29) and a chain guide as the guide mechanism, wherein the chain links (27, 28, 29), lying one behind the other in their direction of movement (23), can swivel relative to one another on a swivel axis running transverse to their plane of movement and are moved by means of the chain guide in the plane of movement sometimes in a straight line, sometimes in a curve. The chain links (27, 28, 29) also have several cutting teeth (34) lying one behind the other in their direction of movement (23), which project radially on the cutting chain (5) and have cutting edges (335), which run transverse to the plane of movement of the chain links (27, 28, 29), wherein the perpendicular projections of the cutting edges (35) are arranged in the plane of movement at least partially along a line curved radially to the outside.

Abstract: The invention relates to a cutting blade, in particular a cutting blade for a cutting machine which slices food, the cutting blade being rotatably mounted about a fulcrum and the cutting edge arranged at the edge of the cutting blade being spiral in design and the cutting edge following the following functional correlation formulated in polar coordinates, at least in portions: r=f (&agr;). Here r describes the distance of the cutting edge from the fulcrum, &agr; describes the angular distance with respect to the zero line, in other words an angle, and f describes any mathematical non-linear function.

Abstract: The present disclosure relates to a jig saw including a base structure, and a housing pivotally moveable relative to the base structure about a first axis that extends longitudinally along the base structure. A motor is positioned within the housing. The motor reciprocates a blade in an up and down motion. A connecting member extends between the housing and the base structure. The saw also includes a first wedge that cooperates with the connecting member to clamp the housing relative to the base structure. The first wedge is moveable to a first position in which the connecting member is caused to compress the housing and the base structure together such that pivotal movement between the housing and the base structure is inhibited. The first wedge is also moveable to a second position in which the housing can be manually pivoted relative to the base.

Abstract: A circular saw having an improved line-of-sight. The circular saw comprises a motor for rotatably driving a saw blade about an axis to cut a workpiece, a bevel angle being defined between the cutting plane of the saw blade and a surface of the workpiece; a housing supporting the motor; a shoe plate supporting the circular saw on the workpiece to be cut, the shoe plate being pivotably connected to the housing to adjust the bevel angle; a main handle supported by the housing; an auxiliary handle supported by the housing; and an indicator for indicating the bevel angle. Preferably, the main handle, the auxiliary handle and the indicator are arranged so that, in the cutting position, the operator can view the saw blade as the saw blade cuts the workpiece and can view the indicator. The operator holds the main handle with one hand and the auxiliary handle with the other hand.

Abstract: A machine tool, with a stop plate (2, 21), a working unit having a disk-shaped cutting tool (1, 17) and a driving mechanism (3), is connected pivotally with the stop plate (2, 21) for making angular and miter cuts. By means of several connecting link guides (4), mounted at the stop plate (2, 21), it is ensured that the cutting characteristics of the machine tool are independent of the pivoted position.