IRWINQUICK-GRIPOne-Handed Mini Bar Clamp 6 Pack, (2) 4-1/4", (2) 6", (2) 12", 1964749 Non-marring pads grip firmly and protect work Converts to a spreader One-handed quick-release trigger Up to 140 lbs. of clamping force Ideal for clamping smaller workpieces and working in confined areas