Machine Vise Precision 6-21/32 in x 6 in Base Jaw Width (In.) 3 61/64 in Jaw Opening (In.) 23/64 in Throat Depth (In.) 1/4 in Overall Length (In.) 6-21/32 Overall Height (In.) 3-55/64 Clamping Force (Lb.) 0 to 6000 Bed/Base Hardened And Ground Compact with 4140 Steel Jaws