3.75 Wood Working Products Chuck Body Wood Lathe Key Chuck System Chuck Set w/ Tool Case. With the variety of included jaws, can been mount most turning projects onto your Lathe. 75 chuck body, (b) self-centering jaw sets, (c) woodworm screw chuck, (d) spindle adapter, (e) gear key, (f) Allen wrench, (g) screws, (h) storage case.