Patent ID: 8641536
Filing Date: 2014-02-04
Classification: B25B

Abstract:
1. A tool for use with a power tool, the tool comprising: an input shaft having a front portion and a rear portion with a shank configured to be removably coupled to a power tool; an output shaft having a front portion and a rear portion, the rear portion of the output shaft rotatably coupled to the front portion of the input shaft, the front portion of the output shaft configured to be coupled to at least one of a tool bit and a threaded fastener; a clutch assembly releasably coupling the input shaft to the output shaft, the clutch assembly including at least one recess defined in one of the front portion of the input shaft and the rear portion of the output shaft, (ii) at least one aperture defined in the other of the front portion of the input shaft and the portion of the output shaft; (iii) at least one roller received in the at least one aperture; and (iv) a spring received over the at least one roller to bias the at least one roller radially inwardly into the at least one recess, such that torque is transmitted from the input shaft to the output shaft when a torque threshold is not exceeded, and that enables release of the at least one roller radially outwardly from the at least one recess such that torque is not transmitted from the input shaft to the output shaft when a torque threshold is exceeded; and a control sleeve having a first portion with a first inner diameter and a second portion with a second, smaller inner diameter, wherein the control sleeve is received over and is axially moveable relative to the spring between a first position in which the first portion overlays the spring and the at least one roller, and a second position in which the second portion overlays the spring and the at least one roller to abut the spring.