Similar to the No. 30 Handpiece except that it has a collet-type chuck which is adaptable to large shank accessories and tapered front end. Comes with ³⁄₃₂", ¹⁄₈" and ¹⁄₄" collets, pin and wrench for changing collets. Prelubricated ball bearings require no maintenance. Diameter is 1" (except for tapered portion).