Busch Fig. 411CT Twincut Concave Cone Cup Bur Kit Set of 16 Burs 0.80mm-2.30mm

A cup bur finishes and rounds the tops of prongs during stone setting. This kit brings together the complete Busch Fig. 411CT series in a single set, one bur in each size across the full range from 0.80 mm to 2.30 mm.

The concave cone shape of the Fig. 411CT distinguishes it from the traditional concave Fig. 411T. Where the 411T leaves a more rounded profile on prongs, the 411CT's sharply sloped concave cone geometry produces a more defined, crisply finished result. The twincut (CT) blade geometry lets cut metal shavings clear freely from the bur, keeping the cutting action smooth and efficient on prong tips. The set is supplied in a plastic bur box with 48 holes for 3/32 in shank burs.

Features

• Concave cone shape for a sharply sloped, defined finish on prong tips
• Twincut (CT) blade geometry promotes efficient chip clearance during cutting
• Covers the complete Fig. 411CT size range, 0.80–2.30 mm
• Set of 16 burs, one in each size
• Supplied in a plastic bur box with 48 holes for 3/32 in shank burs
• For stone setting prong finishing and rounding work

Notes

The Busch Fig. 411T, a cup bur with a traditional concave shape that leaves a softer, more rounded finish on prongs, is available separately.