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Ships within 48 hours · Estimated delivery Sep 3 - Sep 8
Press knob to open jaws
This kit ships as a complete
avoiding contact with the shaped point
The rubber block surface grips workpieces during filing
Busch Fig 446AU Carbide 70 Hart Burs 3/32" Shank .90mm-2.30mm By the Piece Saw Frames Press knob to open jawsSold 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.
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