Patent ID: 8602695

Claim:
A cartridge assembly with fine-adjustment positioning click for use on a boring bar, the cartridge assembly comprising: a tubular main body disposed about a longitudinal axis, the main body having an internal thread; a tubular movable shaft engaging the main body such that the movable shaft is movable with respect to the main body along the longitudinal axis, the movable shaft having an internal thread and a portion structured to receive a cutting mechanism; a torque-receiving assembly having a first threaded part and a second threaded part, the first threaded part cooperatively engaging the internal thread of the movable shaft, the second threaded part cooperatively engaging the internal thread of the main body; and an entrainment cover slidably coupled to the torque-receiving assembly such that the torque receiving assembly is moveable with respect to the entrainment cover along the longitudinal axis, the entrainment cover being rotatable, while not translatable, with respect to the tubular main body about the longitudinal axis, wherein upon rotation of the entrainment cover about the longitudinal axis, a portion of the entrainment cover interacts with a portion of the main body in a manner that produces an indicating click, each click being indicative of a distance the movable shaft is displaced in regard to the main body as a result of the rotation of the entrainment cover.