Patent ID: 8074732

Claim:
A discontinuous drive power tool assembly for generating rotational torque, the tool assembly comprising: a socket comprising a tapered surface extending from an end of the socket, and a primary engaging surface spaced from the end of the socket; a spindle having a first end portion configured to receive the socket, the first end portion having a primary engaging surface and a tapered surface spaced from a distal end of the spindle, the primary engaging surface and the tapered surface of the spindle being configured to engage corresponding surfaces on the socket, wherein the tapered surface of the socket is configured to engage the tapered surface of the spindle, and the primary engaging surface of the socket is configured to engage the primary engaging surface of the spindle; a pulse hammer engagable with a second end portion of the spindle that is opposite the first end portion; and a motor including a motor shaft engagable with the pulse hammer, the motor being configured to rotate the pulse hammer.