3 Jaw x 2" Lathe Chuck mounted on an MT1 Live Ball Bearing Tailstock Center. MT1 Live Ball Bearing Tailstock Chuck System 3-Jaw x 2" mini lathe chuck with pin-handle keys Live ball bearing tailstock center with MT2 (#2 Morse taper) arbor Fits #1 Morse taper (MT1) tailstocks Front of live center is threaded 14x1mm Chuck body is 2" diameter x 15/16" thick - jaws project 3/8" out from body Reversible jaws hold 1/64" to 2-1/2" outside diameter stock Reversible jaws hold 3/4" to 2-1/2" inside diameter stock With 2 pin-handle chuck keys included