Check the listing for details. Brush Research Manufacturing (BRM) Flex-Hone for Rotors. Condition: New. Listed at 70.00 USD. The Brush Research Manufacturing (BRM) Flex-Hone for Rotors is a high-quality automotive tool designed for brake service. This specialized equipment is used for cleaning and maintaining the rotors of vehicles, ensuring optimal performance and safety. The Flex-Hone is innovative in its design, offering a flexible and adjustable solution for efficiently removing rust and flacking on rotor surfaces. This product is essential for maintaining the health and longevity of your vehicle's braking system.