You can convert your quick-clamp-type bar clamp to act as a spreader, but that function seems like little more than an afterthought — on most dual-purpose bar clamps you have to take the clamp apart and put it together backwards. With Gator Clamp’s Clamp N Spread, it’s obvious from the get-go they designed these clamps to quickly change from clamping to spreading.
Both the stationary and moving jaws of the Clamp N Spread have two faces: one for clamping and one for spreading. To switch from clamping to spreading, just flip a lever, then squeeze the handles to move the traveling jaw. Gator Clamp claims their unique leaf-spring mechanism achieves both a large clamping force and an outstanding march — the distance the jaw travels with each squeeze.
Gator Clamp offers the Clamp N Spread in 12″, 18″, 24″, 28″, 36″, and 40″ sizes. Right now at Amazon the 18″ Clamp N Spread will cost you about $14 and the 36″ about $30.