DescriptionAre you in search of professional drill bit? Or are you looking for sturdy, trustworthy drilling bit that can do multiple jobs at once? If yes, look no further! Our durable drill bits must meet your demands. Using cemented carbide materials with high hardness, can help you do many drilling work, it is one of the best choices for you.Features- Material: cemented carbide. - Size: 8.00X0.70X0.60cm/ 3.14X0.28X0.24inch. - Specification: 3/4/5/6/8/10/12mm.- Adopted of cemented carbide materials, they are wear-resistant and reliable, safe and durable.- They are light weight and can offer quicker and more accurate drilling to improve your efficiency.- Applied for tiles, brick walls, concrete, glass, ceramics, wood, aluminum alloy, plastic steel and other materials.- Exquisite workmanship, corrosion resistance, not easy to rust, no burrs for hand protection.- Proper size, feeling smooth in the touching surface, bring you much more convenience.