Features one-piece spindle construction with permanently lubricated, double-sealed ball bearings for cool extended running. Handpiece measures 1" diameter, 6-1/8" long. Weighs 8-1/2 oz. Includes 1/8" and 1/4" collets. Additional collets are sold separately in sizes: 3/32", 1/8", 3/16", 1/4", 3mm, and 4mm.  The Optional Collet Set includes all 5 inch-size collets.   Please note: Fits TXH and H flexible shaft machines with 1/4" square drives ONLY.