20PCS tungsten carbide burrs set is a great variety of shape. Versatile, contains everything you need for this. These die grinder bits are made of tungsten carbide steel which has long working life with high wear-resistance. 1/8 inch shank compatible with for metal grinding bits compatible with angle or straight air or electric die grinder bits.Suitable for most small rotating tools. Double cut produces a finer than single cut and reduces size of chips and Conditions. It also gives greater tool control and complete project faster. The carbide burr set is ideal for fine detail work and may be used on wood, metal, plastic, ceramic, stone, glass, and other materials.<br><br>Colour:silver Material:Metal<br><br>Package Contents: 1 set *(20 pcs) metal engraving tools<br><br>Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.