Proxxon 38128 TBM Bench Drill Machine 110-120V, 65HZ, 85W comes with 6 steel collets size 1/32, 1/16, 5/64, 3/32, 7/64 and 1/8 inches (1.0, 1.5, 2.0, 2.4, 3.0, 3.2 millimeter) Recommend clamp work pieces with Proxxon Machine Vise number 28132 or 24260 Convert this machine into a high precision machining center with use of 24256 Proxxon KT 70 Micro Compound Table Optional Proxxon Original German Rohm Chuck umber 28122 available