[Ultra High Performance]Made from carbide, this metal die grinder set offers exceptional hardness and durability. Its heat-treated construction ensures it runs fast for long periods. to chipping and breakage, they retain their sharpness and efficiency [Comprehensive Shape]Featuring cylindrical, ball, tree, and cylindrical radius shapes, this set provides the necessary burrs for a wide range of tasks. With a 1/4 inch shank [For Everyone]Whether you're a DIY enthusiast or a professional, our 10 piece 1/4 inch double cut carbide burr set is a must have. This carbide burr set is compatible with many rotary tools and drill grinders [Widely Used]Our carbide burrs are perfect for cutting, shaping, grinding and removing material from hard materials such as metals, stone, ceramics and even some plastics