2-in-1 UpgradeHigh quality metal multi-function tile drill bit set with triangular handle easily penetrates different materials, easy to locate, stable drilling, high speed, no damage to borders and clean openings. High-quality materialThe professional metal drill bit has higher hardness and wear resistance than other traditional alloy materials, and it is not easy to break and bend . Work efficiency and service life are obviously improved. EASY TO USEThe sharp triangular concrete drill bit has strong stability, does not slip when drilling, and has precise positioning function, which can quickly finish the drilling work and save time. U-shaped slot with quick removal of drill dust, 3-point shank can hold the bit firmly in the tile drill bit set. WIDELY USEThe drill bit is ideal for drilling all types of materials including ceramic tile, concrete, tile, brick, wood, plastic, glass, masonry and more. Note: When drilling hard materials (glass, porcelain, marble or granite) please use water to lubricate. Specification: Material: high quality tungsten carbide metal Size: 6/8/10/12mm Package contains: 2* concrete drill bit 6mm 1 *concrete drill bit 8mm 1* concrete drill bit 10mm 1* concrete drill bit 12mm Features: 1. Drilling is clean, smooth, without edges or corners 2. The drill bits are easy to position and the chip transport works perfectly. 3. The concrete bit is of superior quality with a reinforced head that prevents breakage and guarantees a longer life. 4. Metal drill bits have high hardness and wear resistance. Caution: - When drilling hard materials (glass, porcelain, marble or granite), please use water to lubricate. -If the concrete contains steel bars, the bit may be easily damaged. - Keep drill bits and bits in a vertical degree and use water or coolant when drilling. - Do not not choose the percussion type of drills or hammers when using these metal bits - The drilling speed should not be so high, choose a low speed at the beginning of the drilling. Number of products: 5 pieces The color red Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store