Starrett Pin Vises are useful for securing small stock, taps, drills, reamers, scribers, wire, small files, and awl needles. The jaws are hardened with a few turns of the binding nut, a firm grip may be obtained. Binding nuts are nickel plated & handles are made from an insulating PVC which is octagonal in shape (preventing rolling). A hole extends through the full length of the handles so that wires of any length and any diameter up to the full size of the tool may be used. Capacity: .030"-.062" (0.8-1.6mm) Length of tool: 3 5/8"