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Werko 7.7mm Ø HSS Jobbers Drill Bit Din 338

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    Werko 7.7mm Ø HSS Jobbers Drill Bit Din 338
    Code: 0024077J

    Werko, Jobber, Drill Bit

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    Product Description
    • Werko HSS jobber precise drill
    • General-purpose drill
    • To drill steels with tensile strength up to 1.000 N/mm2
    • DIN338
    • High heat resistance to drill non alloyed steels with strength over 800N/nn2
    • Twist drills with straight shank
    • Ground centering
    • Tolerance H75
    Details:
    • Size - 7.7mm
    Uses:
    1. Cast steel, grey cast iron, malleable cast iron, nickel brass and graphite

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