VEVOR Dry Core Drill Bit, 3\" / 76.2mm Diameter 5/8\"-11 Shank Arbor with a Pilot Bit & 4.5\" Blade, 9.5\" / 241.3mm Depth Diamond Coring Bore Tool, Masonry Hole Saw Bits for Hard Concrete Brick and B Premium Diamond Grit 5/8"-11 Universal Thread Quick Chip Removal Hole Flawless Kit High-frequency Teeth Welding Extensive Uses Bit Diameter: 3 in / 76.2 mm,Model: COREDRILL3IN,Material: Diamond & Aluminum Alloy,Bit Depth: 9.5 in / 241.3 mm,Net Weight: 4.8 lbs / 2.2 kg,Thread: 5/8 in - 11