wolfcraft 3457403 Quick-Jaw Mini One-Handed Bar Clamp and Spreader, 12in. Comfortable 12-inch mini bar clamp that helps deliver a true one-handed operation experience Reverse gear mechanism allows you to loosen and re-tighten jaws, while functioning as a one-handed device 2-1/2-inch full depth clamp pads with V-groove provides a maximum clamping area Quick-release button provides easy conversion to the additional spreader Ergonomic shape of handle for safe and fatigue-free work