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This diamond core drill bit has been manufactured for heavy duty drilling applications through the toughest construction materials, including brick, masonry & concrete. Precision machined to withstand immense stress, the bit features highly concentrated diamonds & an extremely tough premium grade steel barrel.This drill bit can be used in conjunction with SDS Plus machines & other fitting systems if used with the appropriate adaptor. 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.Specifications:• Dimensions: 182mm diameter x 165mm length• Grade: X90• Segment height: 10mm• Segment attachment: brazed• Dry/wet: Dry• Segment type: flat curve• Barrel type: Slotted• 1/2" BSP Female Backend