Busch® Tungsten Vanadium 90° Bearing Bur Set, 3.1

These Busch® 90° bearing cutter (hart) burs are used for cutting stone seats and for notching prongs. This set includes 11 burs, sizes 3.1mm through 7mm. Made from cost-effective tungsten vanadium, these burs cut precisely and can be used at low speeds.