Product Name: 5PCS Aluminium Box Diamond Core Drill Bits Kits Model NO.: DY-08 Certification: MPa Usage: Masonry Drilling Type: Core Drill Trademark: DY-Tools Transport Package: Carton Origin: China HS Code: 82071910 Product Description Product description:Diamond core drill sets offer a professional quality 1/2" BSP threaded core tipped with premium 10mm fluted turbo cut diamond segments. They are manufactured to offer exceptional wear and speed of cut.A robust case ensures the best storage practice to keep your cores in prime condition. Ideal for use in plumbing, electrical and general building installation to cut clean holes in brick and concrete blocks.Features:Suitable for brick, stone and concrete blocks.1/2" BSP thread fits most the drill machines.10mm Turbo cut segments for fast drillingContains 38, 52, 65, 117, 127mm the most popular core drill sizes in the market.Sturdy aluminium storage caseFull accessory list as following.1. 1x A-tape pilot drill 10x200mm2. 1x SDS plus adaptor 10x115mm3.1x SDS plus extension adaptor 10x240mm4. 1x HEX adaptor 12x88mm5.1x HEXextension adaptor 12x240mm6. 1x extractor drift keyPictures :Our Factory:Our factory was established 2000s, and has along history of more than 20 years. We are now ahigh technology with the capability of production, sales, and research of new technology.Our factory was supported with apowerful technology team, advanced production line, and inspection equipment. We strictly conform to ISO9001-2000 quality control system. Inspection between processes follows the EN standard.We are supply the vacuum brazed diamond saw blade, Vacuum brazed diamond core drill bit, Vacuum brazed diamond grinding wheel and so on. Our products have exported to Europe, America,Asia and enjoyed good reputation.Hope fully to be your trustworthy supplier in China.Our Service 4F:1. Free sample cost. (size :105/115/125mm)2. Free replacement of damaged goods.3. Free design of new packaging for you.4. Free testing of product quality for you.