HICO Drill Press Vise, Cast Iron 4 inch capacity - VMSO100 Solid cast iron construction reduces vibration. 4-Inch/100 mm width jaw (replacable) closes smoothly and tightly 3-Inch clamping capacity and 1-Inch throat depth holds firmly knurled handle allows for screwdriver-style operation to close/open quickly This vise does great on the HICO-Drill Press or HICO Workbench