10PCS Carbide Burr Set: 10 shapes grinding bits (cylinder x 2, conical x 3, spherical, pointed, oval, pointed, mushroom) with 1/4-inch (6.35mm) shank, fit for grinding, shaping, deburring, and carving metal, wood, and stone with precision. Efficient Double-Cut Groove Design: The cutting bits features , -cut teeth for fast material removal and improved cutting efficiency, providing a smoother and more precise finish. Material: Die grinder bits make of high-quality tungsten carbide for superior hardness and wear resistance, ensuring long-lasting performance even in demanding applications. Portable Storage Case: The engraving bits rotary tool accessories comes with a compact, protective case for easy organization, transport, and quick access to your tools, keeping your workspace tidy. Wide Compatibility & Application: The carbide drill bits set with 1/4-inch shank fits most pneumatic and electric die grinders, deburring bits drill bits ideal for professionals and DIYers working in tight spaces on a variety of materials Colour:As shown Material:Metal Package Contents: 10 * shapes grinding bits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.