4 Inch Diamond Hole Saw Core Drill Bit | Concrete, Granite With Adapter

The multiple gaps between the cutting teeth not only make the cutting resistance smaller, but also greatly enhance the chip removal ability of the hole saw . Make cutting and drilling faster and more accurate. 【Accurate Positioning Pilot bit Design】Each tile hole saw is designed with a detachable Positioning pilot drill bit, The pilot drill bit is designed for precise positioning and easy operation, allowing anyone to easily drill holes in granite or tiles. 【Size】Cutting diameter: 4 Inch (101mm), Cutting Depth: 1-5/16 Inch, Shank Dia.: 3/8 Inch(9.5mm) , perfect for drilling tiles, ceramics, glass, marble and granite. 【Sharp & Clean Holes】This Multi-tooth diamond tile core drill bits with thicker diamond coating make the edge of the groove sharper, can cutting precise flat bottom holes with no chipping on smooth surfaces, such as ceramic tiles, ceramics, glass, marble, granite and terrazzo. But in order to extend the use of diamond drill bits, it is recommended to add water or other coolants during the drilling process.