SHPR6S | Stronghand Locking C-Clamp (OAL 165mm Swivel Pad) Locking C-Clamps Improved features for professionals and Do-It-Yourselfers. Made of heat treated steel and nickel/chrome plated for strength and durability. Updated features help you work quickly safely and efficiently. OAL: 165mm Throat Depth: 46mm Opening: 56mm Weight: 0.3kg