Features & 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.