The Jorgensen cabinet master 90 deg parallel jaw bar clamp is a cabinetmaker's great friend. Its large plastic jaws distribute clamping pressure over wide areas and stay parallel to assure square corners and prevent workpieces from bowing or lifting. This makes it the ideal clamp for flat panel, box, cabinet, frame and panel door assemblies or any project that requires squareness or evenly applied pressure. A built-in clamp stand allows for one-handed use and quicker sliding head adjustment. Want to use it as a spreader. Just reverse the sliding head.