Busch Burr 1 Round Set Of 10 Burr Sizes 2.7-4.2

Produces a precise power cut Perfect for creating and enlarging setting For use with a pendant drill, hobby drill or micromotor Made from hardened steel 2.34mm shank Established in 1905, Busch are the leading manufacturers of precision cut rotary accessories and pride themselves on maintaining high quality trend led developments. This set of 10 high quality round burrs have been produced from a single piece of hardened steel and are characterised by a stable design which provides a precise power cut and optimum concentricity, ideal for preparing settings. Measuring 2.70mm, 2.80mm, 2.90mm, 3.00mm, 3.10mm, 3.30mm, 3.50mm, 3.70mm, 4.00mm and 4.20mm at their widest and tapering around to created a sphere, these burrs are perfect for opening the setting up to allow for the wideness part of the girdle but then taper in again to hold the gem securely in place. They are designed to be used in conjunction with a pendant drill, hobby drill, micromotor or even a pin vice such as 999 AKK or 999 332 to cut or grind away, shape or give pattern to a surface. Suitable to be used on metal, wax and plastics. Each burr`s construction consists of a number of teeth/blades (in a spherical shape) mounted onto a 2.34mm shank. The shank fits into the collet/chuck of the drill, and when turned these teeth cut into and remove the surface being worked upon. Quantity of material removed depends on pressure applied, use of `Burr Life lubricant` (998 021) helps prolong the burrs cutting ability. Supplied in a handy sliding box.