Heavy Duty Bench Vise, Body Tensile Strength 60,000 psi, Spindle Type Covered, Jaw Face Width 4 in, Jaw Opening - Maximum 4 in, Throat Depth 2 in, Jaw Face Type Serrated, Jaw Pad Material Hardened Steel, Includes Pipe Jaw Yes, Pipe Diameter - Maximum Not Applicable, Includes Rotating Head Yes, High Visibility No, Base Material Iron, Base Mount Type Clamp-On, Base Swivel Angle 360 Degrees , Base Tensile Strength 60,000 psi, Base Type Swivel, Body Material Cast Iron, Features Built-In Anvil