Ideal for clamping, welding, soldering, and gluing jobs. Can be clamped deep in places without obstacles. Comes with a hex key control function that allows you to fine adjust the grip power with a screw bolt. For securing and welding, soldering, and bonding work. Total length: 6.5 inches (165 mm). Maximum mouth opening: 2.1 inches (54 mm). Jaw depth: 1 mm). Depth B: 1.8 inches (47 Locking C clamp (vice grip): Nickel chrome vanadium