General description Designed for professionals and DIY enthusiasts, this 6pcs Double Cut Tungsten Rotary Burr Set features a universal 6mm shank compatible with all cordless drills, electric drills, pneumatic tools, die grinders, and other rotary tools. The set includes six common shapes: domed cylinder, round shaft, concave arc with ball point, cone, cylinder, and inverted cone, making it versatile for various applications. Technical specifications Shank size: 6mm Length: 25mm Thickness: 13mm Material: Tungsten Hardness: Up to HRA85 Compatibility and accessories Compatible with cordless drills, electric drills, pneumatic tools, die grinders, and other rotary tools. Package includes: 1 set of rotary grinding head. Usage Machining all types of metals, including hardened steel. Suitable for non-metallic materials such as marble, bone, and jade. Can be used on drill presses, lathes, and hand-held or flexible shaft electric or pneumatic equipment. Replaces small grinding wheels for most