MT-RSR | 7040 | Brake Lathe Quick Chuck Adapter | 3-Jaw with Backing Plate The MT-RSR 7040 Quick Chuck Adapter with Backing Plate is designed to streamline brake lathe operations. This adapter features a versatile 3-jaw quick chuck and a standard backing plate, making it an essential tool for efficient rotor and drum machining. Key Features: Quick Chuck Versatility: Fits brake drums and rotors with centering holes ranging from 2-1/8" to 3-3/4". Standard Backing Plate: Features a 5" diameter for reliable support. Wide Compatibility: Designed for use with popular brake lathe brands including Ammco, Hunter, FMC, Accuturn, Ranger, and Atlas. Time-Saving Design: Eliminates the need for multiple adapters, reducing setup time and potential errors. Self-Centering Functionality: Ensures precise and accurate machining results. Compatible Brake Lathe Brands: Ammco: 3000, 3800, 3850, 4000, 4100, 6000, 7000 Hunter: BL20, BL21, BL23, BL30, BL31, BL33 FMC: 601, 701, 702, 7600, 7700 Accuturn: 1450, 8499, 5223, 8922L Ranger: RL8500 Atlas: TR470 Interchangeable Part Numbers: Ammco: 70042, AS70040, 70040 MT-RSR Insights: If you frequently machine rotors, the MT-RSR 7040 Quick Chuck Adapter is a game-changer. This adapter simplifies your workflow by reducing inventory needs and minimizing setup errors. Its self-centering design accommodates drums and rotors with centering holes from 2-1/8" to 3-3/4", ideal for compact cars. With optional accessories, this adapter can handle a wider range, from 2-1/4" to 5-3/4", including 1-ton trucks.