Positive Rake Carbide Insert Bits, 6-Pack | Fits AMMCO 3850, 4000 & 7000 Brake Lathes | Part #6918-6 Shop Supplies The matte black finish is

The matte black finish is virtually invisible on dark-painted and black-coated alloy wheels

36" Extended | For Ventilated Rotors on AMMCO 1" Arbor Brake Lathes | Part #6920 · Hubless Quick-Chuck Adapter Set

75oz | P-Series Clip-On Profile | 100 PCS per Box

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Positive Rake Carbide Insert Bits, 6-Pack | Fits AMMCO 3850, 4000 & 7000 Brake Lathes | Part #6918-6 Shop Supplies The matte black finish isBrake Lathe Details Replacement positive rake carbide insert bits sized for AMMCO 3850, 4000, and 7000 series bench brake lathes. The positive rake geometry produces a clean, low resistance cut for finishing passes on standard rotor materials, minimizing heat buildup and operator fatigue across continuous service. Six pack format suits lower volume shops or works as a working spare beside the standard 10 pack stock. Part #: 6918 6 Quantity: 6 inserts