PBA Front Hand Wheel Quickie 5C Collet Chuck, Threaded Mount, 2-1/4-8

Precise Magnetic "V" Block 4" x 2-3/8" x 2-3/8"Applications Ideal for holding round and irregular shapes for scribing, grinding, measuring and machining. Features 145 lbs. of powerful holding force. Fine precision ground finish for use as an inspection dev