An accessory tool includes an adapter end, and a shank coupled to the adapter end and including a first length. The shank includes a tool engagement portion, and a first reduced portion disposed between the tool engagement portion and the adapter end. The first reduced portion has a second length. The shank additionally includes a second reduced portion formed in the tool engagement portion between the first reduced portion and an end of the shank. The second length is 2.5% to 15% of a total length of the accessory tool.

The invention relates to an interface between a collet holder and a tool adapter, said interface being simple in construction and in which the insertion of a tool adapter is possible in a simple manner even in confined spaces.

A hand-held rotary tool includes a housing that encloses a motor having an output shaft. The tool includes a quick connect adaptor configured to connect an accessory to the output shaft. The adaptor includes a driver that is connected to the output shaft and rotates in concert with the output shaft. An outer surface of the driver has a first flat. The adaptor includes a receiver that includes a connector configured to detachably connect with the housing, and a torque transfer device configured to receive the driver. An inner surface of the torque transfer device includes a second flat that engages with the first flat in such a way that rotation of the driver results in rotation the torque transfer device relative to the connector. The adaptor includes an output device that supports the accessory and that is driven by the torque transfer device to move relative to the connector.

A device for mechanically processing a workpiece is provided. The device includes a rotating device and a holding adapter which are mechanically intercoupled such that the rotating device generates a rotation of the holding adapter about a rotation axis, while the holding adapter holds a clamping part for the mechanical treatment of the workpiece such that the holding adapter rotation axis and a longitudinal axis of the clamping part enclose an angle of more than zero degrees.

An improved adapter sleeve is submitted which has a shank for insertion into a toolholder for a machine tool, wherein a tool socket for holding a tool is formed in the shank, wherein a number of slots are disposed along the shank so that the shank can be compressed during clamping, wherein a cutting head is formed which is arranged on a front side (F) of the shank. In one embodiment, the cutting head has an insert seat for a cutting insert.

A self-locking clamping system for hollow shaft adapters is proposed.

The invention relates to a tool holder with a tool holding fixture, in particular a clamping chuck such as a contracting chuck, a draw-in collect chuck, a hydraulic expanding chuck and a high-precision chuck, and a shank of a tool, in particular a rotary tool, accommodated in it, wherein the tool holder contains a means for preventing the tool from being pulled out, locking it against axial displacement. This pull-out preventing unit comprises at least one locking element and at least one locking groove, which corresponds to the said locking element, receives it and interacts with it in a positively locking manner. In this case, both the locking element and the locking groove are formed at least partly in the manner of a ball head. Preferably, the tool has the locking grooves. On account of preferably spirally arranged locking grooves along the cylindrical shank of rotary tools, the direction of pitch of which grooves corresponds to the direction of the grooves of the tool, axial locking of the tool is obtained, so that the tool cannot be axially displaced from the tool holder during operation. In addition, force-exerting elements are arranged, with the effect of making the tool lie against the pull-out preventer without play after shrink-fitting.

This disclosure includes various embodiments of couplers for coupling intraosseous (IO) devices and drivers, and various embodiments of drivers and kits.

An adapter tool with a drill bit is provided that selectively connects to a driver to provide added versatility to the driver. The adapter tool includes a spring with an engagement end that extends through a body to selectively engage a recess in the driver. A user can actuate the spring to quickly engage and disengage the adapter from the driver. In practice, a user can use the adapter-driver combination to drill a pilot hole using the drill bit on the adapter, selectively remove the adapter from the driver, and then put a screw into the pilot hole using the driver.

An accessory tool includes an adapter end having a maximum outer dimension, and a shank coupled to the adapter end. The shank includes a tool engagement portion including a cross section having a maximum outer width, a first reduced portion disposed between the tool engagement portion and the adapter end and having a first minimum outer dimension and a first length, and a second reduced portion formed in the tool engagement portion between the first reduced portion and an end of the shank. The second reduced portion is engaged by the tool to secure the shank to the tool, and has a second minimum outer dimension and a second length. The maximum outer dimension is greater than the maximum outer width. The maximum outer width is greater than the first minimum outer dimension and greater the second minimum outer dimension. The first length is greater than the second length.