90 Degree, Angle Clamp, Holds & Aligns Materials At A 90 Degree Angle, Automatically Adjusts To Hold Two Different Sizes Of Wood Together, Jaws Automatically Adjust Within 4" Range, 2" x 2", 1" x 3" Etc., Die Cast Jaws Are Plastic Coated To Protect Work Piece, Open Design Allows Ample Clearance To Screw, Dowel Or Staple Material Together While Gluing, Maximum Passage For T-Joints - 1 1/8".