Mechanics and brake shop pros, this is for you. This Shark PN-408-10 pack contains 10 superior grade carbide bits and 10 matching screws, specifically designed for bench and on-the-car brake lathes. These are positive rake bits with a larger 0.048-inch nose radius. Why does that matter? The larger radius is more effective at cutting through hard spots in rotors and gives a much smoother finish compared to standard bits. They're made in the USA and are the FMC-style, compatible with a bunch of popular brake lathe models like Hofmann, RJ West, FMC 8911, 8922, 8944, 8989, 8991, and 8993. Each carbide insert has three cutting edges, and they're marked with 1, 2, and 3 dots on each corner so you can easily track which edge you've used. They're precision pressed and ground to perform as good as or better than OEM bits. This 10-pack means you've got plenty on hand for multiple jobs. Using quality bits like these extends the life of your lathe tools and ensures a professional, clean cut on every rotor job. A must-have consumable for any serious brake service operation. Keep your shop running smoothly with these durable, effective carbide bits.