Attributes . Versatile Clamp Secures Parts for Assembly, Fastening, Gluing, and Welding In Woodworking, Metalworking, and Automotive Applications; Cast Malleable Iron Frame with I-Beam Design Provides Sure Strength; Acme-Threaded Screw Glides Smoothly Without Sticking Or Binding; Swivel Jaw Pad Floats In A Low-Resistance Ball-And-Socket Joint To Apply Pressure Evenly; Sliding Handle Bar Offers Multiple Hand Positions For Best Leverage . Names