Busch Fig 446AU Carbide 70 Degree Hart Burs on 3/32" Shanks-Set of 15 .90mm-2.30mm Redi-Prongs Compatible with kiln

Compatible with kiln

Four-prong setting for secure round center stone retention

Platinum alloy is 950 platinum / ruthenium (95% platinum

plain bands can be compressed using one of 12 countersunk and polished reducing holes

Important: This is a brush-type motor

Busch Fig 446AU Carbide 70 Degree Hart Burs on 3/32" Shanks-Set of 15 .90mm-2.30mm Redi-Prongs Compatible with kilnThe Busch Fig 446AU Carbide 70 Degree Hart Burs are precision engineered tools designed specifically for cutting seats in prongs. This complete kit includes 15 burs in a plastic storage box, covering sizes from 0. 90mm through 2. 30mm in 0. 10mm increments giving jewelers and stone setters the full range needed for consistent, accurate prong seat work. Carbide burs are the longest lasting burs available, outlasting both tungsten vanadium and high