Lang Tools 279-5420 279 Brake Caliper Press Works on twin and quad piston fixed calipers, as well as single and twin piston floating calipers Centrally located ratchet evenly spreads force in a parallel manner to prevent misalignment of pistons Ratchet technology gives a full 360 degree swing so that the spreader may be placed at any position Extended reversing lever allows for easy change from spreading to retracting Made in the USA Fully retracted: 1-1/2, Fully expanded: 3