10 x Hilti DD-BI+ 14/320 UCL 14mm x 320mm Diamond Core Drill Bit 2080054. Diamond Core Drill Bit. Concrete & Mineral Materials. 10 Core Drill Bits. New & Unused Surplus Stock. Genuine Hilti DD-BI+ diamond core drill bits. Designed for professional diamond core drilling. Suitable for drilling in concrete and other mineral construction materials. Ideal for electrical, plumbing, mechanical and general construction applications. Hilti part number 2080054. Supplied as a pack of 10 core drill bits. These genuine Hilti DD-BI+ 14/320 UCL diamond core drill bits are designed for professional diamond core drilling applications. The 14mm diameter and 320mm length make them suitable for producing accurate core holes in compatible concrete and mineral construction materials. New and unused surplus stock. Superficial marks may be present but performance remains unaffected. Please examine the photographs carefully for the exact drill bits, labels and packaging supplied. New and unused surplus stock – please see photographs for the exact condition and contents. Item location: LS10 4EP. We are not VAT registered. VAT invoices are not available.