Auto-Adjust 13/16" Capacity Horizontal Toggle Clamp automatically adjusts to the dimension of the clamped part. This patented design feature dramatically reduces set up time. Parts of various dimensions can be clamped with out adjustment of the pressure pad lead screw. Face style mounting provides versatility. Clamping force is adjustable from 25 to 250 lbs. by simply turning the knurled adjustment screw. Once the pressure is set, Bessey Auto-Adjust toggle clamps apply the same clamping force to any part being held regardless of size. Parts are held securely regardless of size. Safety & performance are improved when Bessey Auto-Adjust toggle clamps are used in place of other brands. Holding capacity is 450 pounds.