Cylinder Hone, Manufacturer suggested retail price. $19.54 Features and Benefits: Hones drum brake wheel cylinders and disc brake calipers from 13/16" to 2-3/4" (21 mm to 69mm) in diameter Sleeve makes insertion in cylinder easy and protects stones when not in use Use with variable speed drill For disc brake honing use 2004 Replacement Stone Set For drum brake honing use 266 Replacement Stone Set Manufacturer: KD Tools No Warranty