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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
Choose from a variety of lengths and cuts above
The rubber block surface grips workpieces during filing
Press knob to open jaws
3 mm (thickness)
avoiding contact with the shaped point
Busch Fig 446AU Carbide 70 Hart Burs 3/32" Shank .90mm-2.30mm By the Piece Saw Frames Choose from a variety ofSold 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.
