Check the listing for details. 7 Inch Wet Diamond Core Drill Bit Hole Saw For Concrete/Asphalt American Thread. Condition: New. Listed at 70.15 USD. 7" 180mm Wet Diamond Core Drill Bit for Concrete Specifications: Segment height: 10mm Drill diameter：7" 180mm Bit length: 16.5"(420mm)overall length Cutting depth：13.5" Thread size: 1-1/4” – 7 threads(American thread, no adapter required) Features: Intended for drilling hard concrete, block, brick, masonry, and the like materials Drilling method: use WET only Excellent choice for all type of general drilling Ideal for plumbers, electricians or general contractors For Wet Drilling in Wire Mash or Light Steel Reinforced Concrete with Medium Aggregate Packing list: 1x 7" Wet Diamond Core Drill Bit Our Gauranteen: 1.We Provide you with the verious ways of shipping,you can choose the best way to ship to you. 2.If the item.