The Zona Double-Ended Pin Vise comes with two double ended collets with 0"p.109" or 7/64" (0 p2.7686mm) capacity range. 3-7/8" overall length. Four chuck sizes for drills, miniature reamers, files and small tools: 0 p.05", .03 p.08", .05 p.10", and .07 p.11".