Two guide rods made of steel reduce wear and ensure a smooth, parallel operation. The jaws retract when pressure is applied, distributing it evenly across the entire workpiece. The adjustable clamping jaw is used in conjunction with the stoppers mounted at the top of the vise. Mounting holes for attaching wooden jaws of your choice protect the workpiece. By pressing the trigger, a quick-release vise can be opened and closed without using the threaded spindle. Large and small workpieces can be swapped quickly. The S.G. ductile iron half nut ensures longevity and durability and can be replaced when worn.