M24x2 tap drill size

    Use a 22.00 mm drill (22.00 mm) for a M24x2 cutting tap at 75% thread.

    Drills for M24x2 (Metric fine)
    Tap typeDrillDecimal (mm)
    Cutting tap, 75% thread22.00 mm22.00
    Cutting tap, 50% thread (hard material)22.75 mm22.75
    Roll / form tap, 65% thread23.0 mm23.00
    Pitch
    2 mm
    Major Ø
    24.00
    Pitch Ø
    22.70
    Minor Ø
    21.84

    Common questions

    What size drill for a M24x2 tap?
    Use a 22.00 mm drill (22.00 mm) for a M24x2 cutting tap at 75% thread.
    What drill for a M24x2 roll (form) tap?
    About 23.12 mm; the nearest standard drill is 23.0 mm. Check your tap maker's table.

    Other Metric fine sizes

    Drill sizes from Machinery's Handbook and ASME B1.1/B1.13M; roll tap sizes from the form-tap formula. Tap and insert makers' tables are authoritative.

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