These durable clamps have a spring-loaded mechanism for quick, one-handed jaw advancement. The composite jaws reverse for spreading applications and have non-marring, soft-rubber padded faces that are crosshatched for grip. The steel clutch plate is thumb operated and slides easily over the 1/4" × 3/4" steel bar. With a throat depth of 3 3/8" and a load limit of about 330 lb, they are excellent value. Maximum nominal opening capacity is listed.
Available separately, the optional clamp plate (2 1/2" high and 6 5/8" in diameter) is used for radial connection of up to 12 clamps.