A pneumatic tool with changeable exhaust direction includes a tool main body and a direction change assembly. The tool main body includes a housing portion having a first exhaust channel. The direction change assembly includes an air guidance member and an adjustment member. The air guidance member is mounted onto the housing portion, and a second exhaust channel is formed with the air guidance member. The adjustment member is installed with a sealing ring. The adjustment member generates an axial movement relative to the air guidance member and along a first axis to move away from the air guidance member in order to open the second exhaust channel or to allow the sealing member to abut against the air guidance member in order to close the second exhaust channel. Accordingly, the exhaust direction is adjustable during the use of the pneumatic tool in order to facilitate different processing operations.

Reciprocating power tool is provided which is improved in vibration isolation of the handle. The reciprocating power tool has a tool body and a handle connected to the tool body. When an axial direction of a tool bit is defined as a longitudinal direction, the handle extends in a vertical direction crossing the longitudinal direction. Further, an upper region of the handle is connected to the tool body via an elastic member and a lower region of the handle is connected to the tool body via a support shaft that it can rotate around an axis of the support shaft in a transverse direction crossing both the longitudinal direction and the vertical direction with respect to the tool body. When the handle rotates around the support shaft with respect to the tool body, the elastic member reduces vibration which is caused in the tool body and transmitted to the handle.

The present invention provides an electric working machine in which a control board can be disposed without limitations based on a length of a brushless motor in a direction along an axial line. The electric working machine comprises: a brushless motor provided with a rotor and a stator; a motor case and a motor housing in which the brushless motor is stored; a control board which is provided outside of the motor housing in a radial direction of an axial line defined at the center of the rotor, and supports the switching elements; a connection board which is provided in the motor case, and supports the sensors; a through hole provided on the motor case; a through hole provided on the motor housing; and leads and signal lines extending from inside of the motor housing to the outside of the motor housing through the holes.

A seal of a tool of a breaking hammer, a sealing arrangement, a breaking hammer and a method of sealing a tool of breaking hammer is provided. The seal is a sealing ring having an outer periphery provided with several projecting elements, which are slanted. The projecting elements generate torque in the sealing ring when being pushed in a transverse direction during use of the breaking hammer. Thus, the sealing ring may rotate relative to the tool.

A seal of a tool of a breaking hammer, a sealing arrangement, a breaking hammer and a method of sealing a tool of breaking hammer is provided. The seal is a sealing ring having an outer periphery provided with several projecting elements, which are slanted. The projecting elements generate torque in the sealing ring when being pushed in a transverse direction during use of the breaking hammer. Thus, the sealing ring may rotate relative to the tool.

This hydraulic drilling apparatus including a casing comprising a front part, a shank including a fluid injection conduit and intended to be coupled to at least one drill rod equipped with a tool, the shank, a striking piston slidably mounted inside the casing along a striking axis (A) and configured to strike the shank, an extraction piston disposed around the shank and comprising an extraction portion configured to cooperate with the shank, and a cartridge removably mounted on the front part and disposed around the shank, the cartridge including an injection part configured to fluidly connect the fluid injection conduit to a fluid delivery conduit. The cartridge delimits a receiving housing in which the extraction piston is slidably mounted.

The present invention provides an electric working machine in which a control board can be disposed without limitations based on a length of a brushless motor in a direction along an axial line. The electric working machine comprises: a brushless motor provided with a rotor and a stator; a motor case and a motor housing in which the brushless motor is stored; a control board which is provided outside of the motor housing in a radial direction of an axial line defined at the center of the rotor, and supports the switching elements; a connection board which is provided in the motor case, and supports the sensors; a through hole provided on the motor case; a through hole provided on the motor housing; and leads and signal lines extending from inside of the motor housing to the outside of the motor housing through the holes.

A hand-held power tool device comprises an impact tool unit configured to generate a pulse on an insertion tool, and a sensor unit configured to detect at least one of at least one operating parameter, and at least one ambient parameter. The sensor unit includes at least one sensor element configured to detect a spatial position of the impact tool unit.

A hand-held power tool device comprises an impact tool unit configured to generate a pulse on an insertion tool, and a sensor unit configured to detect at least one of at least one operating parameter, and at least one ambient parameter. The sensor unit includes at least one sensor element configured to detect a spatial position of the impact tool unit.

A machine for making screwdriver bit sockets includes a feeing unit and a rotary unit located beside the feeding unit. The rotary unit includes a feeding area, a put-in area, a pressing area and a ready area. The rotary unit includes a disk rotatably connected to a base. Multiple holding units are connected to the disk and moved to one of the feeding area, the put-in area, the pressing area and the ready area when the disk rotates. A feeding arm is located beside the pick-up area and the feeding area to move the sockets from the pick-up area to the holding units. A pressing unit located above the pressing area to press a screwdriver to a socket. A pick-up arm picks up the sockets from the holding units. A control unit electrically controls the rotary unit, the feeding arm, the pressing unit and the pick-up arm.