The JLT Heavy Duty Drawer is designed to clamp and square all doweled and dovetail drawer construction types. JLT’s design is heavy duty, sturdy, intuitive to use, and built to last. It has precise squaring capabilities with ample clamping pressure for your boxes. a quick adjusting roller carriage reduces setup times when moving from size to size, and JLT’s fast acting pneumatic system will clamp and square the drawer in two seconds.