Busch Fig. 411CCC Clean Cut Concave Cup Kit of 20 Burs 1.00mm-2.30mm Solders Hardened to 50rc on the

Hardened to 50rc on the Rockwell scale for long-lasting durability

Form Powder Net Weight 1 lb Application Lens polishing

The Oval Tapered Bracelet Mandrel with Tang is a professional-grade forming tool designed for shaping and sizing oval bracelets with precision

Compact miniature scale replicates the function of full-size silversmithing stakes

All measurements were taken by hand using a digital mm gauge and should be considered approximate

Busch Fig. 411CCC Clean Cut Concave Cup Kit of 20 Burs 1.00mm-2.30mm Solders Hardened to 50rc on theBusch Fig. 411CCC Clean Cut Concave Cup burs are among the most precise jeweler's burs available, engineered to ultra high tolerances from tungsten vanadium steel. This kit spans a full range of sizes from 1. 00 mm to 2. 30 mm, giving bench jewelers and stone setters a comprehensive selection of cup burs in a single, organized plastic container. CCC stands for Clean Cut Concave. Clean Cut means the cutting edges are open, allowing metal shavings to be