Busch Burr 21 Cylinder 0.7mm With Twisted Cut

Produces a precise power cut Ideal for creating a bark effect For use with a pendant drill, hobby drill or micromotor Made from hardened steel Measuring 0.70mm wide from top to bottom this burr is completely straight with a flat end. It has a full working head depth of 3.30mm. It is 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 leaving a perfectly prepared setting. Suitable to be used on metal, wax and plastics. Each burr`s construction consists of a number of teeth/blades (inside of the cup) 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.https://www.cooksongold.com/Jewellery-Tools/Busch-Burr-21-Cylinder-0.7mm-With--Twisted-Cut-prcode-979-010?p=gs