The Irwin Tools 2026306 4-1/2 inch Bench Vise feat - Captured safety jaw to prevent slide from falling out - Throat depth 2-3/8 in. - Integrated pipe jaws - Anvil incorporated - Machined steel mainscrew with rolled two-start acme thread for - wear-resistance and smooth operation - Fused steel handle - Blue - Jaw width 4-1/2 in. - Jaw capacity 4 in.