Busch Fig. 411CT Twincut Concave Cone Cup Bur Kit Set of 16 Burs 0.80mm-2.30mm Ferris Machine-made to ultra-high tolerance —

Machine-made to ultra-high tolerance — consistent size and geometry across every bur

Replacement punch designed for the Round 17° Bezel Block 127

Part # Size Rhodium Content 145

Variable speed control makes this system especially well suited for wheels that perform best at lower RPMs

A thorough reference covering casting by the centrifugal or lost-wax method

Busch Fig. 411CT Twincut Concave Cone Cup Bur Kit Set of 16 Burs 0.80mm-2.30mm Ferris Machine-made to ultra-high tolerance —Cup burs are primarily used by jewelers for finishing and rounding the tops of prongs during stone setting. This kit brings together the complete Busch Fig. 411CT series in a single convenient set, covering the full size range from 0. 80 mm to 2. 30 mm. The concave cone shape of the 411CT distinguishes it from the traditional concave 411T. Where the 411T leaves a more rounded profile on prongs, the 411CT's sharply sloped concave cone geometry produces