Osborn HSS 3 Flute Countersink 20.5mm

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HSS Three Flute 90° Countersink. Specifications • Nominal Diameter: 20.5mm • Shank Diameter: 10mm • Overall Length: 63mm • Capacity: 3.5mm - 20.5mm Features and Benefits • Produces countersinks for cap screws • Self centering and chatter free • Can be used for chamferring • DIN 335C