These 8.5 x 117mm drill bits from DeWalt have been manufactured to a very high standard courtesy of the innovative tapered web which greatly reduces breakage, while the gold ferrous oxide coating prevents overheating for longer bit life. Whether you are a profressional tradesman or DIY enthusiast, the drill bits are ideal for portable drilling of steel, alloyed and non-alloyed up to 900N/mm², and for drilling a sheet or thin materials (suitable for use in wood and plastics). The metal tip starts drilling on contact for clean, accurate holes, while the bit itself has a no-slip shank with 3 flats, eliminating slipping in the chuck (diameters 5mm and above only). * Supplied in a pack of 10 * Faster drilling - up to 4 times faster than standard HSS-R drill bits * Increased durability - up to 50% stronger than standard HSS-R drill bits * Cleaner, accurate, burr-free holes due to recessed cutting wings * Permanent size markings located above shank for increased visibility * Weight: 0.285kg * Tip Ø: 7.5mm * Length: 109mm * Manufacturer's part DT5554-QZ https://elecena.pl/product/27257519/dewalt-dt5554-qz-extreme-2-metal-drill-bit-8-5-x-117mm-pack-of-10 2024-11-13 https://elecena.pl/product/27257519/dewalt-dt5554-qz-extreme-2-metal-drill-bit-8-5-x-117mm-pack-of-10 2025-03-05 https://elecena.pl/product/27257519/dewalt-dt5554-qz-extreme-2-metal-drill-bit-8-5-x-117mm-pack-of-10 2025-03-15 https://elecena.pl/product/27257519/dewalt-dt5554-qz-extreme-2-metal-drill-bit-8-5-x-117mm-pack-of-10 2025-03-26 https://elecena.pl/product/27257519/dewalt-dt5554-qz-extreme-2-metal-drill-bit-8-5-x-117mm-pack-of-10 2025-10-14 https://elecena.pl/product/27257519/dewalt-dt5554-qz-extreme-2-metal-drill-bit-8-5-x-117mm-pack-of-10 2026-05-08