DCDKIT7 Diamond Dry Core Drill Bit Set, 7 Piece

• Professional quality core construction plus performance features deliver a smooth drilling experience.
• 8mm diamond segments with a high concentration of premium grade diamond in the bond.
• Leading-edge diamond/metal bonding metallurgy for long-lasting core life.
• Latest 'V' groove segment design enables fast clearing of debris allowing a continuous fast cutting action.
• Ribbed core body further aids the clearing of waste debris.
• Aerated core design enhances cooling and extends core life.
• 1/2in BSP threaded compatable with standard core drilling machines and accessories.

Kit contains:
• 38mm Core bit
• 52mm Core bit
• 117mm Core bit
• A-taper pilot drill 10 x 200mm
• SDS-plus extension adaptor 10 x 200mm
• Hex extension adaptor 12 x 200mm
• Extractor drift key

In a sturdy aluminum storage case.