The Snap-on BTCP2S Heavy Duty Brake Pad Spreader is designed to operate on all fixed and floating brake caliper types. The BTCP2S has heavy duty heat treated press plates mounted on a solid 1/2" press shaft to ensure the plates remain parallel under heavy loads, eliminating risk of damage to pistons and caliper. The press plates rotate through 180 degrees for efficient operation on both left and right brake calipers.