4PC/PAK C Clamps Set, C Clamps, Up To 4-Inch Jaw Opening, 2-1/4 Inch Throat Depth

[4PCS/PK]: 4pcs/pk 4-inch C clamp, Up to 4-inch jaw opening,Up to 2-1/16″ inch throat depth. [Rust Resistance]: Made of ductile cast iron. Rust-resisting finish. [Good Design]: Swivel jaw pad floats in a low-resistance ball-and-socket joint to apply pressure evenly. [Stability]: Swivel pad offers more stability on clamped items. [Precise]: Cold-rolled single thread for precision work and maximum clamping force.