KATUR 10mm Dia Diamond Hole Saw Bit, Slate Porcelain Marble Hollow Core Drill Bit for Glass, Ceramics, Porcelain - ShopVlot

【High-quality Materials】 The diamond hole saw is made of carbon steel with a neat and quiet opening, no broken edges. Small incision resistance, stable drilling and will not break the border. 【Good Design】 The middle pilot holes and side holes help to remove the waste material easily; The diamond drill has gold paints to become aviod rusty, improves surface corrosion resistance. 【Wide Application】 The diamond drill bits can be used for drilling ceramic tiles, marble, glass, granite, concrete