The drill bit is based on alloy, providing strength and durability; the surface is coated with wear-resistant diamond particles, providing excellent cutting ability and service life.The cylindrical head design facilitates precise drilling and grinding, suitable for creating smooth and accurate holes, the sand grains are uniform and full, sharply and wear-resistant, and the grooved sand-plated design removes chips faster.Suitable for engraving, drilling, grinding jade, amber, beeswax, glass, jade, metal, agate, gemstone, pearl, pendant, goose soft stone and other materials, the effect will be different for different materials with different hardness, which is suitable for bench drills and hanging grinders with 3/32 inch (2.
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