Accu-Turn, Bosch, FMC, Shark, Ranger and RELS Style Positive rake cutting bits for Disc/Drum Lathes. Larger Radius on the insert corners allow for aggressive action and longer cutting life. 3 Cutting Edges. Ammco Lathe Models 3850, 4000, 7000 and 7500. Accu-Turn Bosch Disc/Drum Lathes Models 8911, 8922, 8944, 8989, 8991 and 8933.A FMC Models 67BSD, 67DLX, 67GSA, 69DLX, 701ECF, 601PF. FMC/Barrett Models 400, 500, 600 and 700 Lathes. Ranger RL8500 and RL8500XLT Disc and Drum Cutting Lathes. RELS 2000 Disc and Drum Cutting Lathes. Ranger OEM# 45016 Cutting Bits. 3 Cutting Edges Accu-Turn, Bosch, Ammco, FMC, Shark, Ranger OEM# 45016 and RELS OEM# 45016. Use with Shark tool holder #422, 423, 190, 404, 405, 464, 465.