The Lang Tools Small Brake Caliper Press, No. 277, is designed to work on small to medium single piston brake calipers with a size range of 1" to 3". The caliper press has a centrally located Acme threaded screw that provides extra durability, speed, and ease of use. When using the caliper press, pressure is applied in a parallel manner to distribute the force evenly. It is made in the U.S.A.