Busch Fig. 413AU Carbide Setting Burs 3/32" Shank 0.80mm-3.00mm By The Piece

Finally, the stone setting bur setters have been waiting for. Busch Fig. 413AU ultra-precise stone setting burs are made from hot-isostatically compressed, finest-grain carbide for maximum durability and cutting power. They are super sharp and super flexible, outlasting tungsten vanadium and HSS burs—especially in hard jewelry alloys like platinum, titanium, and white gold. Each bur cuts cleanly across a wide RPM range and forms a precise seat so faceted stones sit firmly in flush and bezel settings.

Sold by the piece. A complete 23-piece set is available separately (see related products).

Features

• Hot-isostatically pressed (HIP) fine-grain carbide construction for long tool life and crisp, accurate seats
• Cuts cleanly at all speeds; performs exceptionally well in hard alloys including platinum, titanium, and white gold
• Outlasts tungsten vanadium and HSS burs in demanding stone setting applications
• Forms precise seats for faceted stones in flush and bezel settings
• Available in 23 incremental sizes from 0.80 mm to 3.00 mm

Specifications

Available Options

Notes

• Size up in small increments to approach a snug seat beneath the stone's girdle.
• Use lubricant or coolant to extend tool life and improve surface finish.
• Secure the workpiece and keep the bur square to avoid tapered or oval seats.

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