Busch Fig 446AU Carbide 70 Hart Burs 3/32" Shank .90mm-2.30mm By the Piece Bur Size:2.30mm Developed in collaboration with metalsmith

Developed in collaboration with metalsmith and designer Michael Good

AGILO-MICROPAVE-HP drills are well suited for use with micromotors or flex shafts

6-prong head designed for a 9

Gauge numbers shown are the closest British Wire Gauge / Stubs Wire Gauge (BWG/SWG)

making them ideal for working in tight and curvy areas

Busch Fig 446AU Carbide 70 Hart Burs 3/32" Shank .90mm-2.30mm By the Piece Bur Size:2.30mm Developed in collaboration with metalsmithSold by the piece, Busch Fig 446AU carbide 70 hart burs are designed for cutting clean, accurate stone seats in prongs on precious and hard metals. The sharp carbide blades bite smoothly into the metal, providing a controlled, predictable feel at the handpiece. Features 70 hart profile engineered specifically for cutting prong seats for stone setting. Carbide construction for extremely long service life compared to steel or tungsten vanadium burs.