findmall 4 x 4-1/8" Precision Mill Vise Anti-Jaw Lifting W/Swivel Base Fit for Milling Shaping and Drilling Machines

Made from the highest quality ductile Iron 80000 PSI for minimum bending Designed so horizontal force pushed the jaws downward, keeping your piece in the right spot Dimensions Jaw Width: 4" Jaw Opening: 3.93" Jaw Height: 1-1/4" Accurate to 0.002"per 4" on squareness and 0.006" per 4" on parallelism without base