6'' Accu Lock Precision Vise w/ Swivel Base Milling Drilling Machine Bench Clamp 6'' accu lock precision mill vise w/ swivel base ; Dimensions jaw width: 6" Max jaw opening:6-1/2";Jaw height:1-7/8";Sliding surface of the vise bed is flame hardened andground Accurate to .002" on parallelism and Squareness ; Sliding surface of the vise bed is flame hardened Each pound of force in horizontal induces 1/2 lb of downward force, eliminating jaw tilt Quantity: 1;Weight: 70 lbs;Unit overall dimension (fully open) : 11''L x 18''W x 11-3/8''H