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Step Twist Drill Bit AWTools 1077302 M2-TiAlN, stepped hole drilling 4–52 mm
Summary description:
Step twist drill bit AWTools model 1077302 made from M2 high-speed steel with TiAlN coating. Designed for stepped hole drilling across a range of diameters from 4 mm to 52 mm in progressive increments. Suitable for use with hand-held drills and drill presses on sheet metal, thin plates and similar materials where variable diameters are required.