Busch Fig 446AU Carbide 70 Hart Burs 3/32" Shank .90mm-2.30mm By the Piece Sheet Stock & Stampings 1 dozen pairs of individually

1 dozen pairs of individually blister-packed

seating position

for limited production runs

Valtitan files produced from 2016 onward are identified by an imprinted tang marking

and more—with minimal cleanup

Busch Fig 446AU Carbide 70 Hart Burs 3/32" Shank .90mm-2.30mm By the Piece Sheet Stock & Stampings 1 dozen pairs of individuallySold 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.