[7 sizes] There are 7 different sizes of drill bits: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm. These glass drills are ideally suited for various drilling tasks, with high drilling precision and can be installed on electric drills. [High quality material] The use of drill material made of Cemented carbide has low strength and high hardness, improves work efficiency and maintains longer cutting time than ordinary steel drills. [Triangular U-groove handle] The spiral in U shape is smooth and flat, which makes drilling smoother. Triangular handle design makes clamping tighter without slipping. [Spear Point Design] This heavy duty carbide tipped drill bit is sharp, easy to locate, stable drilling, fast, does not overstep limits and the opening is clean and smooth. [Wide use] The drill is suitable for drilling ceramic tile, concrete, ceramic tile, brick, wood, plastic, glass, masonry and other materials. It is widely used in home decoration, manual DIY and other scenes. Delivery quantity: 7 *
