Sawyer Mfg. Company 420 Spacing Wedge (Large Spacing Tool), 8-3/4” x 1-3/4” x 1/4” Max ThicknessSawyer 420 Spacing Wedge is a hardened steel fit up tool used to quickly set and maintain an accurate weld gap during pipe alignment and welding. The wedge features a gradual taper to a chiseled point for easier insertion and controlled spacing, and it is precision machined and hardened to resist bending and mushrooming in field use. The 420 model is the standard (large) spacing wedge with a maximum thickness of 1 4, commonly used across a wide range