"The Ridgid 41020 Vise Jaw is multiplier pipe accessory for actual Ridgid pipe vises that improves their clamping functions. It is made from high quality materials that provides a firm holding on different pipe sizes for cutting, threading or joining purposes. This jaw quickly clamps to standard vises allowing for flexibility in plumbing and metalworking applications. Increased safety... https://www.wholetoolbox.com/ridgid-41020-vise-jaw