Carbide Burr Set, Die Grinder Bits, 20 Pcs 1/8" Shank Double Cut Tungsten Carbide Rotary Burrs Set Compatible With Dremel For Metal Carving Wood Worki PREMIUM QUALITYThese carbide burr sets are made of Tungsten Carbide steel which has long working life with high precision shape.^DOUBLE-CUT DESIGNDouble grooves are designed of crossed lines which make it more suitable for low density material like wood platics and aluminum with fast chip removal.^COMPATIBILITYUniversal size 1/8' shank diameter, compatible with dremel and most rotary tools with three jaw chuck and 1/8" collet such as Air Tools, Die Grinders and so on.^MULTIPLE USESThese cutting burrs can work on wood metal plastic ceramic stone glass etc. 20 PCS burr set are ideal choices for your various DIY arts and crafts.^ADAPTABILITY20 kinds of rotary burr set type can meet different work such as carving sculpturing polishing deburring drinding cutting chamfering milling cleaning porting^