Swivel Head Pin Vise 0-3.175mmExcel Swivel Head Pin Vise 4 Chucks Comfortable hexagonal swivel head helps provide proper tension to work surface. Pin Vise for mini high speed drills. Used for lightweight work on plastic, woods, metals and more. This pin vise is equiped with a hexagon swivel head to provide proper tension to work surface. The pin vise includes two double ended collects to hold a range of high speed drills, from sizes 30 (0. 34mm) to 80 (3. 25mm).