Busch Fig 446AU Carbide 70 Hart Burs 3/32" Shank .90mm-2.30mm By the Piece Bur Size:2.30mm Gauge numbers shown are the

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

and decorative applications where a quality sterling silver accent is required

large) Available Options

Developed in collaboration with metalsmith and designer Michael Good

making them highly effective at cutting and texturing surfaces

Busch Fig 446AU Carbide 70 Hart Burs 3/32" Shank .90mm-2.30mm By the Piece Bur Size:2.30mm Gauge numbers shown are theSold 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.