Record Irwin V150B Woodcraft Vice is lighter in construction than the standard woodworking vices, this useful portable vice can be attached to most working surfaces by means of a 2.1/4in capacity integral clamp. Provision is also made for the body to be screwed permanently to the bench if required. High quality cast body fitted with carefully aligned steel slide bars and main screw. Jaw Width. 150mm (6in).Jaw Opening: 115mm (4 1/2in).