Mostartools 1-3/8 Inch Dry Diamond Core Drill Bit for Granite,Quartz Drilling 35mm Granite Hole Saw Masonry Drill Bit

Size:1-3/8 Inch,5/8"-11 Thread Arbor,105mm Total Length 10 mm Height diamond turbo segment drill fast, leave the hole very smooth and clean for the faucets to easily slide into. Dry diamond core drill bit for granite,marble tile,engineered stone and quartz, wet cutting is recommended whenever possible Vacuum brazed side protection on the granite hole saw side to allow heat to escape, keeping the bit cool and working hard offers clean cut and steel core protection.Its performance has been approved by users.. With a Standard 5/8"-11 thread,the drill bit can be fixed on a variety of tools tightly including Angle Grinder,Air Polisher, Hammer Drill, or a Core Driver