6 in 3 jaw Lathe Chuck Self Centering 2-1/4″-8 Thread Mount

2-1/4″-8 Thread Mount 6″ 3-Jaw Self-Centering Lathe Chuck (3900-4724)
Made of high quality semi-steel.
Hardened and precision ground.
Complete with 2 sets of hard jaws, one internal and one external.
Includes a set of mouting screws.
Wrench is included.