The RIDGID Matador Vices are professional bench vices for the workshop, that have an all forged steel construction, that is 3 times stronger than cast iron. They have a large hardened anvil, with hardened and serrated jaws for maximum durability, and machined and hardened sliding surfaces. The rolled twin start Acme thread provides precise operation and longevity with a removable steel spindle nut and measuring scale.