Machine Vise General Purpose Stationary Base Jaw Width (In.) 8 in Jaw Opening (In.) 8 in Throat Depth (In.) 1 5/8 in Overall Length (In.) 21-1/2 Overall Height (In.) 4-1/2 Jaw Deflection 0.002 in Jaw Plate Smooth Bed/Base 0.001 in Cam Action Design for Repetitive Work Locking Lever Locking Lever Can Be Raised or Lowered to Tighten or Loosen Against The Work Piece