Machine Vise Precision Fixed Base Jaw Width (In.) 4 in Jaw Opening (In.) 4 in Throat Depth (In.) 1 1/2 in Overall Length (In.) 9-1/2 Overall Height (In.) 2-1/2 Clamping Force (Lb.) 750 Jaw Deflection 0.010 in At 33 lb Jaw Plate 0.004 in Bed/Base 0.004 in High Precision Fully Ground Base