Rotary hammer with overload clutch

A rotary hammer comprising: The cylindrical spindle, rotatable and hammer's shell; the tool setting device is arranged on the main shaft front end, of which the retaining the cutter or the drill bit main shaft front part of the cutter rest part, a making the cutter or the drill bit end of the limiting reciprocating motion of the main shaft; The air chamber in the mechanism is arranged in the main shaft, with the redundant impacting on the tool or the drill bit, and a rotary driving mechanism capable of rotating around the main shaft end is provided, a driving the main shaft or the part of the main shaft is safe clutch rotary; The automatic clutch, comprising a clutch ring, rotatable the mounting and main shaft, with a limit rotary movement to the spindle transmission device, and rotatable the driven by at least spring element in the spindle transmission gear. Arranged at least one lock of bearing arranged by the vertical to the clutch ring of the first position of the clutch ring; the first position, the locking transmission from the section of the rotary driving on the main shaft.