General description Retracting brake caliper pistons can be used with a square drive ratchet and a 21mm hex wrench or spanner, making it suitable for use on most cars and motorcycles. This tool is designed to simplify the process of spreading brake calipers during maintenance. Technical specifications MPN: 219981CB EAN: 5036140012172 Weight: 830g Tool Material: Steel Product Type: Brake Caliper Spreader Number of Pieces: 1 Additional Features: Phosphate finished spreader plates, constructed from hardened steel for corrosion protection Other information