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Step Drill Bit AWTools M2-TiAlN spiral 4–20 mm, model AW40931BL
Summary description:
AWTools step (cone) drill bit with spiral flutes, model AW40931BL, made from M2 high-speed steel with TiAlN coating. Cutting range 4–20 mm designed for progressive drilling of sheet metal and thin materials. Spiral geometry aids chip evacuation and stable cutting; suitable for workshop, metalworking and maintenance tasks requiring multiple hole diameters without bit changes.