It takes fewer ratchet swings of the Snap-on Small Brake Caliper Press, No. BTCP400, to retract single and multiple piston calipers on compact motorsports vehicles and motorcycles, according to the company. Offset press plates allow the tool to retract to a minimum 0.328". Manufactured with high-strength carbon steel, the unique design features an Acme threaded rod that is tougher, thicker and steeper than standard threads, says Snap-on, allowing expansion with fewer ratchet swings. Other caliper spreaders on the market use hand cranking mechanisms or pistol-type grips that rely on user strength to drive plates, rather than letting the tool do the work.