Archer PRO 10" in. Diamond Turbo Core Drill Bit for Concrete Drilling, Masonry, and Cinder Block Drilling - Use with Core Drill Stand Rig, Concrete Drill Bit, and Concrete Hole Saw. -
VEVOR Core Drill Bit, 4.25" / 108 mm Diameter 5/8"-11 Threaded, 9.5" / 241.3mm Depth Diamond Dry Coring Bore Tool with a Pilot Bit & 4.5" Blade, Masonry Hole Saw Bits for