TOPWAY Bench Vice 4" 100mm, Heavy Duty Multipurpose 360 Degree Swivel Base Workbench Table Clamp for Mechanics and Engineers 403154Heavy cast fine grey cast iron body, spheroidal graphite iron nut with hardened and tempered screw thread for durability Standard parallel serrated jaws, pipe jaws and V jaws provide numerous options 360 locking rotating base with horizontal and angle graduations Solid construction, can be securely locked in any position Can be securely locked in any position Jaw Width: 4"(100mm), Jaw Opening: 4"(100mm), Throat Depth: 60mm, Overall Size: 360X170X200mm