HSS Drill Bit Sleeve 5.5mm DIN338

A precision HSS (High-Speed Steel) drill bit with a 5.5mm diameter, manufactured to DIN338 standards for reliable performance in steel, cast iron, and general metal drilling applications. The hardened steel construction ensures extended tool life and consistent hole accuracy, making it essential for electricians, engineers, and metalworkers. Ideal for panel installation, cable routing, and equipment assembly work.