Tool hones drum brake wheel cylinders and disc brake calipers from 13/16 to 2-3/4_ (21 to 69mm) in diameter. Its sleeve makes insertion in cylinder easy and protects stones when not in use. Use with a variable-speed drill. Use 2004 Stone Set for disc brake honing and 266 for drum brake honing.

Warning: This product may expose you to chemicals including lead which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov