The Europa Tools Stub Drill (21 mm) from the 820502 series is a precision HSS CO8 Cobalt drill bit designed for demanding metalworking tasks. Its stub-length geometry delivers rigidity for accurate holes in stainless steel, alloy steel, and cast iron, while the CO8 cobalt alloy increases hardness and heat resistance for longer tool life.

• Enhanced hardness and heat resistance: The HSS CO8 Cobalt composition delivers superior wear resistance and higher temperature tolerance, allowing reliable drilling through tough metals with longer tool life.
• Rigid stub-length design for precision: The shorter flute length increases rigidity, helping you maintain straight, accurate holes and reduce wandering during challenging drilling tasks.
• Efficient chip evacuation and sharp edges: Optimized flute geometry and sharp cutting edges enable quick chip removal, minimize clogging, and sustain steady cutting speed for cleaner hole finishes.

Across production runs or DIY projects, this drill bit delivers consistent hole quality, minimizes downtime from chip jams, and extends your tooling life. Its robust HSS CO8 Cobalt construction stands up to demanding metals, while the stub-length geometry keeps drilling stable and predictable from start to finish, giving you confidence at setup and finish.