408-10 FMC style positive rake USA made carbide inserts with larger nose radius on the bits for FMC,Hofmann RJ West brake lathes. Use on models 8911,8922,8944,8989,8991 or 8993. Offers you 3 cutting edges. Larger radius is more effective on hard spots in rotors and gives a smoother cut. Bits come with 1,2 and 3 dots on each corner for easy identification of used tip. Precision pressed and ground inserts are guaranteed to perform as good as OEM bits.