Abstract: An impact tool includes a housing, a motor supported in the housing, an output shaft rotatably supported in the housing about a central axis, an impact mechanism coupled between the motor and the output shaft and operable to impart a striking rotational force to the output shaft, and a clutch mechanism coupled between the impact mechanism and the output shaft. The clutch mechanism is operable in a first mode, in which torque from the motor is transferred to the output shaft through the impact mechanism, and a second mode, in which torque from the motor is diverted from the output shaft toward a portion of the impact mechanism.

Abstract: An impact tool includes a housing, a motor supported in the housing, an output shaft rotatably supported in the housing about a central axis, an impact mechanism coupled between the motor and the output shaft and operable to impart a striking rotational force to the output shaft, and a clutch mechanism coupled between the impact mechanism and the output shaft. The clutch mechanism is operable in a first mode, in which torque from the motor is transferred to the output shaft through the impact mechanism, and a second mode, in which torque from the motor is diverted from the output shaft toward a portion of the impact mechanism.

Abstract: A tool for driving a workpiece during surgical procedures has a handle. A gear with teeth thereon is rotatably supported along an axis within the handle. Two pawls are pivotally supported by the handle adjacent the gear and are orbital about the axis upon rotation of the handle. Each pawl has teeth that engage the gear teeth to transmit torque from the handle to the workpiece. Two springs yieldingly urge the pawls into engagement the gear teeth. A cap, with an actuator thereon, is rotatable with respect to handle. The cap has a first position in which the actuator retracts the first pawl out of engagement with the gear teeth, a second position in which the actuator retracts the second pawl out of engagement with the gear teeth, and a third position in which neither the first pawl nor the second pawl is retracted by the actuator.