ABN Ratcheting Brake Piston Compressor Tool The ABN Ratcheting Brake Piston Compressor Tool helps you to quickly and easily compress and align pistons into place to make room for thick replacement brake pads. A Closer Look 360-DEGREE SWING The carbon steel handle and ratchet wheel provide a 360-degree swing that allows you to keep the 4.6 by 2.4-inch or 7 by 2.4-inch compression plates in place while you ratchet the handle back and forth to spread or retract the distance between the plate to create force against the pistons. BRAKE PAD SPREADER PLATES 2 sets of piston brake pad spreader plates spread from 1-9/16 to 2-3/8 inches (2.5 to 5.1 cm) to allow plenty of room to install new brake pads. A PERFECT FIT Disc brake caliper set works well on single, double, quad, or rear brake calipers making this set ideal for most vehicles on the road. Larger plates are held in place with built-in magnets. Who We Are Auto Body Now is a family owned company based out of South Dakota. We have an exceptionally strong Internet presence, sending out over 50,000 products each month. In fact, if you have purchased any of your auto body supplies or car care supplies online, there is a good chance we have had the opportunity to serve you.