Swiss Cup Bur Assortment - .90 to 2.30mm - 9 Pieces

Cup burs set stones, round prong tips and refine seat edges with speed and control, and this assortment keeps the nine most-used sizes within reach. The Otto Frei Swiss Cup Bur Assortment runs from 0.90mm to 2.30mm in the Fig. 77B cup bur profile, with every bur on a standard 3/32" diameter shank and the set delivered in a plastic bur box.

Tungsten Vanadium steel burs are machine-made to ultra-high precision tolerances, producing cuts that are uniformly smooth and clean with no chatter or drag on precious metal. High Speed Steel (HSS) burs are individually hand-cut and therefore vary from piece to piece, while these burs are mechanically consistent, so every bur in the set performs predictably. The most modern manufacturing equipment combined with Swiss steel hardening expertise makes this line of burs a top seller for professional bench jewelers.

Features

• 9-piece assortment covering sizes 0.90mm – 2.30mm
• Swiss-made Tungsten Vanadium steel construction
• Machine-made to ultra-high precision tolerances for uniform consistency
• Cuts precious metal smoothly and cleanly with no chatter or drag
• Fig. 77B cup bur profile, the most popular style in the jewelry industry
• Standard 3/32" diameter shank on every bur
• Stored and delivered in a plastic bur box for bench organization

Compatibility

The standard 3/32" diameter shank fits most flex shafts and rotary handpieces.

Notes

Tungsten Vanadium burs offer outstanding precision and value, and they are not as long-lasting as USA-made High Speed Steel burs. They are typically available at a lower price point.