Professional Jeweler's 4-in-1 Pin Vise - 0.0mm - 3.0mm - Brass Handle Professional quality pin vise with two double-sided collets that store in handle Collets fit sizes 0-1.0mm, 1.0-1.7mm, 1.7-2.4mm and 2.4-3.0mm Brass handle with mirror chrome finish, knurled grip and hex collet adjustment nut Spinner cap allows downward pressure with heel of hand while turning with fingers Great for use with small drill bits, burrs, pins, wire and small parts