For honing of brake cylinders and piston bores with capacities between 51 - 178mm. Self-aligning flexible shaft and leg assembly for smooth operation at all speeds. Features and Benefits • Honing diameter and pressure is adjusted via a simple, spring and cone mechanism • Suitable for use with a variable speed electric or air drill and fits into all three jaw chucks • Supplied complete with a fine grade stone set Notes • For storage purposes legs are retained in position by a triangular clip - can be removed using long nose pliers or tweezers and should be retained for further use • Replacement stone sets available • Use brake fluid for cutting lubricant • Overall length: 290mm