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Thread: Threading issue

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  1. 10-06-2017, 01:37 PM #1
    Janith
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    Post Threading issue

    When I machining threads in my HAAS VF2 machines always the threads are not neat. They don't have sharp edges. Thread gauges are not enter to them. Material is stainless steel. I am not using any tapping attachment. Only tap attached to the collet.
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  2. 10-06-2017, 02:04 PM #2
    sinha_nsit
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    Re: Threading issue

    Check bore diameter.
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  3. 10-07-2017, 04:02 AM #3
    Janith
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    Re: Threading issue

    For M12 x 1.75 we use 10.3mm drill. I know correct dia is 10.25 but 0.05mm for easy tapping.
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  4. 10-07-2017, 07:08 AM #4
    sinha_nsit
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    Re: Threading issue

    Higher bore dia would not give sharp edges.
    10.25 may not be available, so 10.2 can be used.
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