A power tool, such as an impact driver, includes a motor housing that houses a motor, and a battery-mount part to which a battery pack having a rated voltage of 18 V is mountable. A ratio of the maximum width of the motor housing to the maximum width of the battery pack is 0.75 or less. A forward/reverse-switching lever is slidable in a left-right direction to change the rotational direction of the motor and is disposed between the motor housing and the battery pack. A maximum-slide position of the forward/reverse-switching lever in the left-right direction is inward of a ground plane when the power tool is laid horizontally on its side on the ground plane.

A device for screwing and unscrewing bolts and screws uses a motor-driven screwdriving tool, which is preferably used in the track region of railroad facilities. The device makes it possible to screw and unscrew screws, nuts and bolts reliably and effectively, preferably in the context of railroad use. The appliance is intended to have a low weight and a high output over long periods of use, can be operated with one hand, is specifically pre-oriented to the various applications and has a modular construction. To this end, the device has a central rib which serves as a receptacle for all of the attachments and fittings to be installed in a modular manner.

A device for screwing and unscrewing bolts and screws uses a motor-driven screwdriving tool, which is preferably used in the track region of railroad facilities. The device makes it possible to screw and unscrew screws, nuts and bolts reliably and effectively, preferably in the context of railroad use. The appliance is intended to have a low weight and a high output over long periods of use, can be operated with one hand, is specifically pre-oriented to the various applications and has a modular construction. To this end, the device has a central rib which serves as a receptacle for all of the attachments and fittings to be installed in a modular manner.

A power tool is provided which accommodates interchangeable tool heads. The power tool includes: a tool body having a housing and an electric motor mounted within the housing, as well as a tool head that releasably attaches via a mechanical connection and an electrical connection to the tool body. The tool releasably connects to the output shaft of the electric motor when the tool head is attached to the tool body. A tool switch interposed between a power source for the electric motor and the electric motor is operable to supply power from the power source to the electric motor. A tool accessory switch interposed between the tool accessory and the power source for the electric motor is operable to supply power from the power source via the electrical connection to the tool accessory, thereby providing the tool operator independent control of the tool accessory.

A rotary power tool includes a housing having a motor housing portion and a handle extending from the housing. An electric motor is disposed within the motor housing portion. The rotary power tool further includes a trigger switch configured to activate and deactivate the motor, a plurality of lighting elements configured to be activated in response to actuation of the trigger switch, and a brightness control unit positioned on the housing. The brightness control unit is configured to adjust the lighting elements between a plurality of different brightness states other than an “ON” state or an “OFF” state.

A rotary power tool includes a housing having a motor housing portion and a handle extending from the housing. An electric motor is disposed within the motor housing portion. The rotary power tool further includes a trigger switch configured to activate and deactivate the motor, a plurality of lighting elements configured to be activated in response to actuation of the trigger switch, and a brightness control unit positioned on the housing. The brightness control unit is configured to adjust the lighting elements between a plurality of different brightness states other than an “ON” state or an “OFF” state.

A power tool with a removable lighting accessor that is configured to be inserted into a compression sleeve, wherein the lighting attachment may be inserted and rotated without removing a working end of the power tool.

A power tool with a removable lighting accessor that is configured to be inserted into a compression sleeve, wherein the lighting attachment may be inserted and rotated without removing a working end of the power tool.

A power tool reduces performance deterioration. The power tool includes a motor, an output unit, a motor compartment, and a grip. The motor includes a rotor bearing and a rotor rotatable about a rotation axis extending in a front-rear direction. The rotor includes a rotor magnet, a core to which the rotor magnet is fixed, and a shaft protruding from an end face of the core and supported by the rotor bearing. The shaft and the core together are a single member. The output unit is at least partially located frontward from the motor and rotatable by the rotor. The motor compartment accommodates at least a part of the motor. The grip protrudes downward from the motor compartment.

An impact power tool includes one or more of the following features including a housing, a motor, an output spindle, a rotary impact assembly, and a planetary transmission having a fixed ring gear and rotatable planet gear carrier. In an aspect, the planetary transmission is configured to transmit rotational motion from a motor output shaft to a cam shaft at a single overall speed reduction ratio. The planetary transmission includes a sun gear rotatably driven by the motor output shaft, a planet carrier rotatably driving the cam shaft, a ring gear rotationally fixed relative to the tool housing, a first planet gear mounted to the planet carrier and meshed with the sun gear but not meshed with the ring gear and a second planet gear mounted to the carrier and meshed with the ring gear but not meshed with the sun gear.