11 Piece Premium Dry Diamond Core Drill Bit Set with Case Supplied in a convenient carry case, this 11 Piece diamond core drill bit set includes 5 different sized drill bits, as well as 2 SDS Adaptors and 2 Hex Adaptors for use with different fitting systems, a pilot drill for marking the worksurface and a drift key to assist with bit and chuck removal. Each of the diamond core drill bits has been manufactured for heavy duty drilling applications through the toughest construction materials, including brick, masonry & concrete. Precision machined to withstand immense stress, the bits feature highly concentrated diamonds & extremely tough premium grade solid steel barrels, for increased drilling speed and extended lifetimes. Use a professional standard electric drill with a motor of at least 850W for heavy duty drilling applications - cordless models are not suitable. Applications: Recommended for the following materials: Medium soft facing brick, concrete blocks, hard sandstone, coarse sandstone, soft slate, breeze block, lignacite blocks. Includes: 38mm Dry Core Drill 52mm Dry Core Drill 65mm Dry Core Drill 117mm Dry Core Drill 127mm Dry Core Drill 80mm SDS Adaptor 250mm SDS Adaptor 80mm Hex Adaptor 250mm Hex Adaptor 10mm x 175mm A-Taper Pilot Drill Drift Key

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