Fast-acting bar clamps can deal with 90% of the clamping jobs around the shop; these light-duty clamps have a classic design with a few improvements that stand out from other clamps on the market.
The 1/4" thick by 1" wide steel bar has a profile similar to an I-beam, increasing its rigidity and resistance to twisting forces. For complete assurance that the movable jaw won’t slip, you can tighten a set screw to grip serrations on the bar, locking it in place. The synthetic handle won’t loosen in changing humidity and has rubbers sections that allow a good grip. To prevent the jaws from marring your work, they come with removable plastic pads.
Made with tough malleable cast-iron jaws and an Acme-cut screw, the clamp can apply up to 800 lb of clamping force. They have a 4" jaw depth and a 1 3/16" face width.