1、Excellent Material: Die grinder bits are made of tungsten steel alloy, the knife body is solid, high wear resistance, incisive and efficient. 2、Double Cut: The burr set produces a finer finish than single cut and reduces the size of the chips and slivers, which also gives greater tool control. 3、Excellent Balanced: The carbide burr set cut through extraneous material like a hot knife through butter. No wear out after a long time use. The shaft will not bend at high speed. 4、Round Drill Shank: Bur set adopts universal round drill shank, which is not easy to slip when rotating at high speed. Can be applied to all major brands of hand drill, electric grinder, etc., applicability of high speed rotation is not easy to slip. 5、Wide Application: Die grinder bits are suitable for a variety of materials, such as solid wood, large core board, multiple layers of board, medium fiber board, particle board, density board, chipboard, sandwich board.