Best Quality Product & Extremely High Precision Made of close grain high tensile seasoned Cast iron. Screw spindle made of tool steel for long life & high performance. Fully hardened & ground tool steel jaws. Swivel Base is graduated 360 Degrees, in 1 Degree increment , so that vice can be set at any working angle in Y axis. Jaw Width : 3 " Inches ( 75 mm ) Max. Jaw Opening: 75 mm Jaw Depth : 33 mm