Jorgensen - Jorgensen – No. 1 Hand Screw Tool ReviewThese time-honored clamps offer a deep reach and a lot of clamping force.
The woodworking hand screw has been around for hundreds of years. Hand screws have long jaws, so they offer a deeper reach than other small clamps. Also, the jaws can be angled, so it’s easier to clamp odd-shaped parts or apply targeted pressure just at the tips. Last, the jaws are square, allowing a wide array of clever uses (see Using Hand Screws from FWW #194).
The jaws crank out some pretty serious clamping force—about 1,000 lb. in my test. And they open and close pretty quickly; just grab a handle in each hand and start pedaling. I find that the No. 1 Jorgensen hand screw is a good size. Its jaws open to a full 6 in. Rockler’s clamps worked almost as well, and sell for just $13.