The Eclipse ESC Sash clamps have an average clamping force of up to 1100 lbf. depending on the size. The ductile head and slide are guaranteed unbreakable, whilst the steel bar offers maximum tensile and yield strength. The slightly tapered jaws enable perfectly parallel clamping and the fast action rolled thread applies pressure quickly and smoothly to the workpiece. Clamping Capacity: 24″. Bar Length: 30″.