Machine Vise Self Centering Swivel Base Jaw Width (In.) 4 in Jaw Opening (In.) 4 in Throat Depth (In.) 1 1/2 in Overall Length (In.) 10.24 Overall Height (In.) 4.73 Clamping Force (Lb.) - Jaw Deflection 0.006 in Per 4 in At 33 lb Load On Hand Crank Jaw Plate Square To 0.0012 in per 4 in Bed/Base Parallel To 0.0012 in 360 Degrees Swivel Base Both Jaws are Movable Allowing for Accurate Centering of Jobs Hold Down Slot for Secure Clamping