Maxipress R Piston Clamp, 12 in Opening, 6 in Throat Depth, 10,000 N ORS NASCO [Nom] 4 1 2 in Grit 36 [Nom] 4 1 2 in Grit 36 Hazmat NO Jan San Catalog NO Prop 65 NO Quarterly Flier NO Special Order NO Speed [Max] 12000 RPM Stock Status In Stock UNSPSC 31191506 Welding Catalog NO Wt Hardware Tool Rolled spring steel bar provides maximum pressure held throughout the whole job Fixed jaw surface is grooved to achieve maximum grip Spring activated back brake keeps moving jaw firmly in position Covered double threaded screw doubles both pressure and speed with a greasing hole for optimum lubrication Dismountable interchangeable easy grip handle