Counterbore 180° with cylindrical shank for through holes. Ideal for countersinking screw heads according to DIN 912, DIN 6912 and DIN 7984 as well as for cylindrical screws according to DIN 84 (ISO 1207). Suitable for steel, cast iron and light metals. Creates clean countersinks without burrs and notches. Made from HSS (high-speed steel). Main features: - Countersink diameter: 20 mm - Shank diameter: 12.5 mm - For thread: M12 - Material: HSS - Application areas: Steel, cast iron, aluminum, INOX
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