Up to 136kg (300 lbs) of sustained clamping pressure – ideal for temporary hold-down and quick clamping applications Ergonomic grip and Quick-Release trigger– provide simple, one-handed operation Quick-Change button – offers easy removal of jaws for conversion to a spreader Non-marring pads - protect the workpiece Heat-treated, black oxide carbon steel i-beam bar- offers superior durability Spreading capacity: 200mm-645mm (7-7/8” – 25-3/8”) Throat depth: 81mm (3-3/16”) Medium duty clamps are available in a range of sizes from 150mm to 900mm – suitable for various projects, Weight: 1.06042348022 Pounds, Manufacturer: Irwin