General description The Irwin Record T135/5 Heavy-Duty Sash Clamp is designed for robust performance in woodworking and DIY projects. With a capacity of 1050mm (42 inches), it provides reliable clamping power for various applications. Technical specifications Capacity: 1050mm (42 inches) Bar section: 32 x 6mm (1.1/4 x 14 inches) Other information The slide and head are guaranteed unbreakable. The slide is secured by a solid steel pin passing through one of the locating holes along the steel bar. The steel mainscrew applies pressure quickly and smoothly through a fast-acting, hard-wearing rolled thread. Slides and heads are flat-bottomed, allowing the clamp to stand without support.