for HELICOIL® threaded inserts

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  3. Preparation

Hole preparation

Correct preparation of the hole is key to ensuring the successful installation of the HELICOIL® insert.

  • Roughing tap for HELICOIL® wire thread inserts

    Taps and gauges

    A range of taps are available to suit the precise tolerance and dimensions required by the HELICOIL® insert to ensure the correct interferance fit. To ensure holes have been correctly drilled and tapped we recommend the use of a hole gauge.

    Taps and gauges in detail


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