HHIP 3900-4706 MT2 Shank 3" 3-Jaw Lathe Chuck with Threaded Drawbar End, 3/8-16 Thread Threaded Drawbar End: 3/8-16 Steel body-hardened and ground scroll and pinions Hardened and ground MT spindle Includes 2 sets of solid steel jaws, both internal and external Supplied with chuck wrench