4" 3-JAW PLAIN BACK LATHE CHUCK (3900-0032)

4" 3-Jaw Plain Back Lathe Chuck Made of high quality semi-steel. Hardened and ground. Lathe chuck wrench is supplied with the chuck. 2 Sets of hard jaws, both internal and external, are included. 3 M8 mounting screws are included. Maximum RPM is 4,200. T.I.R. is .0028". Shipping Weight: 7 lbs