Professional-grade 4.0mm HSS drill bit with Titan Gold coating for superior performance. The advanced titanium nitride finish delivers extended tool life, reduced friction, and faster drilling speeds across steel, cast iron, and aluminium. Engineered for precision work in industrial and workshop applications. The hardened high-speed steel construction maintains sharp cutting edges through demanding jobs, while the gold coating provides excellent heat resistance and corrosion protection. Ideal for contractors and tradespeople requiring reliable, durable drilling solutions.
