A hand-held tool that is prepared for remote control has a handle region, an actuating button, and a removable attachment part held in the handle region. The attachment part has a handling extension and a collar encompassing the handle region. The collar includes first and second collar parts pivotably connected together. The attachment part acts upon the actuating button. The actuating button is displaced into an actuating position by a housing section of the collar for a duration of an arrangement of the attachment part on the handle region.

A chainsaw 1 (electric-power-driven working device) comprises a body case 10, a cutting attachment 20 (work tool), a motor 30 and a battery 90. A front portion 11a of the body case 10 houses the motor 30 and a battery mount-and-release portion 12 is formed on a rear portion 11b of the body case 10. The battery 90 mounted on the battery mount-and-release portion 12 extends in an upper-lower direction across and over a middle portion in a height direction of the rear portion 11b of the body case 10. The side handle 50 arranged to a side face of the body case 10 extends from the front portion 11a to the rear portion 11b of the body case 10. A rear end portion 52 of the side handle is disposed rearward of and below an output shaft 31 of the motor 30.

A core drill includes a housing, a first handle extending from the housing and defining a gap between the handle and the housing, a motor supported within the housing, and a battery removably coupled to the housing and configured to provide power to the motor. The battery has an output voltage greater than 40 volts. The core drill further includes a spindle configured to rotate about a rotational axis in response to torque received from the motor and a fluid delivery system configured to supply fluid to the spindle. The fluid delivery system includes a valve operable to regulate a flow of fluid to the spindle and an auxiliary handle removably coupleable to the housing at each of a first mounting point and a second mounting point.

A power tool assembly includes a hand-held power tool, a dust collector removably coupled to the power tool, and first and second power tool battery packs each of which is interchangeably coupled with the power tool and the dust collector for separately powering the power tool and the dust collector, respectively.

A dust collector for electric power tool includes a body case, a dust box, a nozzle, and a dust collecting route. The dust box includes a dust-collector-side exhaust port and is installable on an electric power tool. The dust box internally includes a filter. The nozzle is disposed to the body case and includes a suction opening on a front end. The dust collecting route is disposed from the suction opening to the dust-collector-side exhaust port passing through the filter. The dust box includes a box main body that includes a vibration applicator configured to directly apply a vibration to the dust box by a rotating operation of an operation knob.

An auxiliary grip of a hand-held power tool includes a rod body, a connecting member, and a covering layer made of an elastic material. An end portion of the rod body has a first coupling portion. Two ends of the connecting member have a connecting section and a second coupling portion, respectively. The second coupling portion of the connecting member is coupled with the first coupling portion of the rod body so that the rod body can be swayed relative to the connecting member. The covering layer covers the rod body and a part of the connecting member. The connecting section of the connecting member is connected to a power tool. When the power tool causes the auxiliary grip to vibrate due to its mechanical operation, the rod body can be swayed relative to the connecting member to reduce the vibration during the grip.

A system for attaching a handle such as an extension pole to a power tool such as a hand sander includes a collar, a pressure plate, front and back pairs of vibration absorbing spacers, and a handle holder. The collar has a contact area and two projections extending from the contact area, and the a plate fits onto the projections so that the plate and the contact area of the collar define a space for mounting of a tool. The handle holder extends between the projections and is between the first and second pair of vibration absorbing spacers. A tightening structure may press the plate toward the contact area and compress the first and second pairs of vibration absorbing spacers toward the handle holder.

Auxiliary handle installed on the casing (11) of a drill (1) having a drilling axis (Xo), incorporating an electronic acceleration meter (231), with axes (XoYoZo) defining a reference point; one (Xo) of the axes being the drilling axis; the other axis (Yo) being that of the handle (2); and a reference surface (SR, SR1-SR3, 3, 4) associated with the reference point of the acceleration meter (231) to register the relative position between the surface to be drilled (S) and the drill (1), and calculate the set position of the drilling axis (Xo), and a display (25) to show the set position of the handle (2) calculated from the set position of the drilling axis (Xo) to execute the drilling.

An impact tool includes a housing extending along a longitudinal axis. The housing includes a motor housing portion, a first handle extending from the motor housing portion, and a front housing coupled to the motor housing portion opposite the first handle. The impact tool also includes a motor supported within the motor housing portion, an anvil extending from the front housing, an impact mechanism supported within the front housing, and an auxiliary handle assembly. The auxiliary handle assembly includes a mount coupled to the housing, an auxiliary handle coupled to the mount and spaced from the first handle, and an adjustment mechanism. Loosening the adjustment mechanism permits rotation of the auxiliary handle assembly about the longitudinal axis relative to the housing, and tightening the adjustment mechanism secures the auxiliary handle assembly in a selected rotational position.

In a tool attachment for a handheld power tool, which includes a tool housing having a fastening interface, having an attachment housing, on which a locking unit, for locking the tool attachment on the fastening interface of the handheld power tool, and a tool receptacle for accommodating an insert tool are situated, a percussion mechanism is situated in the attachment housing, which is configured to apply percussions carried out in the axial direction in relation to the tool receptacle to an insert tool, which is situated in the tool receptacle, during percussion operation of the tool attachment, the tool receptacle being fixed in position in the attachment housing in a non-rotating way at least during percussion operation.