1Pcs Drill Bit Set Thread Wet Diamond Core Drill Bit for Concrete Premium Green Series Drill Bit Diameter 4.5"/5"/5.5" Wet Diamond Core Drill Bit fit Concrete Premium Plumber Tool (4.5")

4.5"/5"/5.5" Wet Diamond Core Drill Bit for ConcreteSpecifications：Segment height: 0.4inch/10mmDrill diameter：4.5"/5"/5.5" （114mm/127mm/140mm）Bit length: 16.5"(420mm)overall length Cutting depth: 13.8"(350mm)Thread size: 1-1/4" 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 AggregatePacking list: 1x 4.5"/5"/5.5" Wet Diamond Core Drill Bit

• [SPECIFICATIONS] Segment height: 10mm. Drill diameter：4.5"/5"/5.5" (114mm/127mm/140mm). Bit length: 16.5"(420mm)overall length. Cutting depth: 13.8"(350mm). Thread size: 1-1/4" threads (American thread, no adapter required).
• [PREMIUM MATERIAL] The diamond concrete hollow drill is welded from high-quality fine steel stone fragments, which can effectively cut hard concrete and other hard materials. It is very sturdy and durable and is an excellent choice for all kinds of conventional drilling.
• [WORK EFFICIENCY] This diamond concrete hollow drill bit has been tested and found that it takes about 4 minutes to drill a 220mm thick cement block with four 14mm steel bars inside, and can drill up to 40 holes. The hand-held drilling machine only takes 3-4 minutes to break through the brick wall. Notice: use WET only.
• [PREMIUM MATERIAL] The diamond concrete hollow drill is welded from high-quality fine steel stone fragments, which can effectively cut hard concrete and other hard materials. It is very sturdy and durable and is an excellent choice for all kinds of conventional drilling.
• [QUALITY ASSURANCE] We have strict quality control system, our products are put into the market after rigorous testing. We provide friendly customer services forever. If you have any questions or quality issue,please feel free to contact us.