12mm Diamond Core Drill Bit - Drill Bit for Marble, Ceramic and Porcelain

【High-Quality Materials】 The diamond hole saw is made of high-carbon steel with a clean, smooth opening and no chipped edges. It offers low cutting resistance, stable drilling, and won't break the edge. 【Good Design】 The central pilot holes and side holes help with easy waste removal; the diamond drill bit has a gold coating to prevent rust and improve surface corrosion resistance. 【Wide Application】 Diamond drill bits can be used to drill ceramic tiles, marble, glass, granite, concrete, and other hard materials. They work with all electric drills and impact drills. This is your ideal choice for DIY projects and home maintenance and repairs. 【Please Note】 When cutting hard materials, it is important to ensure the drill bit remains cool to avoid damaging the material being drilled and premature wear of the bit. Water is necessary for lubrication during drilling, which can extend the life of the drill bit. Specifications Material High carbon steel Size 12 mm diameter Package Includes 1 x Diamond Hole Saw Drill Bit