A Must-Have: the tungsten carbide burrs set 1/4 shank is a great variety of ... milling, polishing, porting, etc. 1/4 inch (6.35mm) shank compatible with DEWALT, Ingersoll Rand, Milwaukee, Makita ...

and are your best choice for engraving processing. 【Multi-functional Use】- The 20-piece set of tungsten rotary burrs includes drill bits of various shapes, such as oval, spherical, pointed ...