A method of using an oscillating accessory with an oscillating power tool may include providing an attachment member. The attachment member may include an attachment plate, a raised rim portion extending from the attachment plate, the raised rim having a central recess, a keyed sidewall with an at least partially star shape configured to be engaged by a first mating geometry of an oscillating power tool, and a top wall that includes a receiving portion having a plurality of recesses configured to be engaged by a second mating geometry of an oscillating power tool. The central recess may not be in communication with any of the plurality of recesses. The attachment member may be used to facilitate tool-free attachment of a working portion to the oscillating power tool via a clamp assembly having a first clamp member moveable relative to a second clamp member without use of a secondary tool.

A method of using an oscillating accessory with an oscillating power tool may include providing an attachment member. The attachment member may include an attachment plate, a raised rim portion extending from the attachment plate, the raised rim having a central recess, a keyed sidewall with an at least partially star shape configured to be engaged by a first mating geometry of an oscillating power tool, and a top wall that includes a receiving portion having a plurality of recesses configured to be engaged by a second mating geometry of an oscillating power tool. The central recess may not be in communication with any of the plurality of recesses. The attachment member may be used to facilitate tool-free attachment of a working portion to the oscillating power tool via a clamp assembly having a first clamp member moveable relative to a second clamp member without use of a secondary tool.

The invention relates to a tool device which is suitable for use with a machine tool, in particular a hand guided machine tool, having a driving device moving, in particular in an oscillating manner, around a driving axis. The tool device has an attachment device which allows it to be fastened on a machine tool such that its driving axis and an axis of rotation of the tool substantially coincide. The attachment device, for absorbing the driving force, has at least two driving area regions, which are spaced apart from said tool axis of rotation and each has a plurality of surface points. The tangent planes to said surface-area points are inclined in regard to an axial plane, which encloses the tool axis of rotation. Furthermore, said tangent planes are inclined regard to a radial plane which extends perpendicularly to the tool axis of rotation. This means that the torque introduced into the tool device by the machine tool, via the driving device, is reliably absorbed.

A power tool includes a spindle, holding members each having a claw, a biasing member, and a locking member. The holding members are movable between a first position, in which the holding members fixedly hold a tool accessory against a tool mounting part of the spindle with the claws pressed against the tool accessory owing to a biasing force of the biasing member, and a second position, in which the holding members do not impede or block attachment or detachment of the tool accessory. The locking member is configured to move between a locking position, in which the locking member abut on the claws of the holding members to hold the holding members in the second position, and an unlocking position, in which the locking member does not impede or block the holding members from moving from the second position to the first position.

A cutting device for cutting a pipe having a pipe wall includes an elongate carrier having a tool end which is engageable with a power tool, and a free end. The device includes a guide wheel located at the free end of the carrier, which is mounted thereon for rotation relative thereto, having a bearing surface extending parallel to a longitudinal axis of the carrier. The device also includes a cutting element having a peripheral cutting edge which is located adjacent to the guide wheel being positioned intermediate the guide wheel and the tool end. The cutting element is of greater transverse dimension than the guide wheel so that when the bearing surface bears against an internal surface of the pipe the distance between the cutting edge of the cutting element and the bearing surface enables the cutting element to cut through the pipe wall.

A cutting device for cutting a pipe having a pipe wall includes an elongate carrier having a tool end which is engageable with a power tool, and a free end. The device includes a guide wheel located at the free end of the carrier, which is mounted thereon for rotation relative thereto, having a bearing surface extending parallel to a longitudinal axis of the carrier. The device also includes a cutting element having a peripheral cutting edge which is located adjacent to the guide wheel being positioned intermediate the guide wheel and the tool end. The cutting element is of greater transverse dimension than the guide wheel so that when the bearing surface bears against an internal surface of the pipe the distance between the cutting edge of the cutting element and the bearing surface enables the cutting element to cut through the pipe wall.

Plunge saws with cut indicators and methods of operating plunge saws are disclosed herein. The plunge saws include a motor and an arbor, which is configured to operatively attach a circular saw blade to the plunge saw and to receive a torque from the motor. The plunge saws also include a base plate and a base plate pivot. The plunge saws further include a plunge mechanism, which is configured to be selectively actuated, by a user of the plunge saw and during operative use of the plunge saw to cut a workpiece, to transition the plunge saw from a retracted orientation to a plunged orientation and to plunge the circular saw blade into the workpiece. The plunge saws also include a cut indicator, which is configured to project a light line onto the workpiece to visually indicate, on the workpiece, a location of an edge of the circular saw blade.

There is provided a cutting apparatus that cuts a workpiece by a cutting blade. The cutting apparatus includes a chuck table that holds a board in which a groove is formed through cutting of the board by the cutting blade, a cutting unit having a spindle and a mount flange that is fixed to a tip part of the spindle and on which the cutting blade is mounted, and a replacement apparatus that replaces the cutting blade mounted on the mount flange with the cutting blade stored in a blade storing part and replaces the board placed on the chuck table with the board stored in a board storing part. The replacement apparatus includes a holding part that holds the cutting blade and the board under suction.

There is provided a cutting apparatus that cuts a workpiece by a cutting blade. The cutting apparatus includes a chuck table that holds a board in which a groove is formed through cutting of the board by the cutting blade, a cutting unit having a spindle and a mount flange that is fixed to a tip part of the spindle and on which the cutting blade is mounted, and a replacement apparatus that replaces the cutting blade mounted on the mount flange with the cutting blade stored in a blade storing part and replaces the board placed on the chuck table with the board stored in a board storing part. The replacement apparatus includes a holding part that holds the cutting blade and the board under suction.

An apparatus for cutting and driving a shaft which extends from a hub, the apparatus incorporating a hub adapter fitted to receive the hub; a plurality of set screws mounted upon the hub adapter for clamping the adapter upon the hub; a half of a releasable fastener attached to the hub; a pair of adapters which are fitted for alternatively receiving the hub adapter; a pair of second halves of the releasable fastener which are adapted for alternatively completing the releasable fastener, wherein each of the second halves of the releasable fastener is connected to one of the adapters among the pair of adapters; a pivoting rotary saw connected to one of the adapters among the pair of adapters; and a shaft driver tool connected to the other of the adapters among the pair of adapters.