Versatile style C-clamp. Forcing screw has a sliding handle. Swivel pad completely encircles the ball joint providing permanent attachment as well as full swivel action. Heavy walled hub supports forcing screw, thereby reducing distortion. Extra large anvil for greater gripping area. Forcing screw has roll formed acme threads for greater strength, smoother running, reduced thread damage, producing more clamping force with less effort. Made in the USA.