Right Arm Clamp was developed by a woodworker who needed an extra hand in the shop. The multi-purpose shape is so versatile that it can take the place of “C” clamp, bench vise, miter clamp, framing vise and many others, offering you hundreds of uses. Virtually eliminates the need for confusing and unstable multiple-clamp setups. Cast aluminum with steel pivot pins and threads. Clamping capacity 1 5/8" and 2" depending on setup.