3, Premium Face Lock Clamp, Operates At A Maximum Angle Of 60 Degree, Extra Large Pad Creates A Flush Joint As The Screws Are Driven, Ergonomic Comfort Grips To Help Reduce Slippage Diminish The Possibility Of Pinching, Designed To Handle Work Pieces Up To 234 Thick, Forged From Steel, Compatible With Kreg Jig R3’S Portable Clamp Adapter