Hones drum brake wheel cylinders and disc brake calipers from 13/16" to 2-3/4" (21 mm to 69mm) in diameter
Use with variable speed drill
For disc brake honing use 2004 Replacement Stone Set
For drum brake honing use 266 Replacement Stone Set
This tool removes metal with a fine grit abrasive stone in order to meet precise tolerances. It's made with a sleeve which makes the insertion in the cylinder easy and protects stones when not in use.