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Step twist drill bit set AWTools 1077330 M2‑TiAlN, set of 4, sizes 4–12 mm and 4–20 mm
Summary description:
Set of four step twist drill bits AWTools 1077330 with M2 substrate and TiAlN coating. Includes two stepped sizes covering 4–12 mm and 4–20 mm ranges. Designed for progressive hole enlargement in metal, sheet, and other materials where stepped drilling speeds up deburring and hole sizing. Suitable for workshop and industrial drilling tasks using hand-held or machine drills.