The Europa Tools Stub Drill (28 mm diameter) in the 820502 series is a high-quality drill bit crafted from HSS CO8 cobalt. Designed for precision drilling applications, this stub drill delivers reliable performance and durable operation in demanding metalworking tasks.

The HSS CO8 cobalt construction provides increased hardness and heat resistance, making it well-suited for drilling through tough materials such as stainless steel, alloy steel, and cast iron. Its stub-length design enhances rigidity and stability, helping you achieve accurate, repeatable holes with minimal drift. Sharp cutting edges and an optimized flute pattern promote efficient chip evacuation for cleaner holes and steady cutting speeds.

• Stub-length design for enhanced rigidity: Reduces flex and deflection, delivering straighter holes and tighter tolerances in hard metals.
• HSS CO8 cobalt for extended durability: Higher hardness and heat resistance mean longer tool life when drilling stainless and alloy steels, reducing tool changes.
• Efficient chip evacuation with optimized flute geometry: Keeps chips moving away from the cut, supporting faster drilling and cleaner finishes with less clogging.

With this 28 mm stub drill, you’ll gain a dependable, repeatable drilling solution that supports faster workflows, fewer rework steps, and consistent hole quality across challenging materials—making it a solid choice for engineers, machinists, and workshop professionals alike.