SHPR115S | Stronghand Locking C-Clamp (OAL 280mm 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. Type: Swivel Pad OAL: 280 mm Throat Depth: 83 mm Opening: 100 mm Weight: 1.0 kg