HSS Drill Bit (Metric):5.5mm - DIN 338

This precision tooling item is a metric HSS drill bit with a 5.5mm nominal diameter, manufactured from high-speed steel for reliable performance. It conforms to the DIN 338 standard, ensuring consistent geometry and fit for professional applications. High-speed steel provides the hardness and heat resistance needed for drilling through common metals in fabrication and maintenance settings. Buyers select this metric size for specific engineering tolerances where standard imperial options do not apply. The designation indicates a standard straight-shank design suitable for universal drill chucks. Choose the 5.5mm variant to match specific component requirements in metric assembly lines.