Thread: Help with drill-Mill conversion
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21-06-2009 #11
Last Activity: 09-03-2024
Ok. drilling the quill has turned into a nightmare, made the drill extender and drilled it no problems, however I couldnt get a 6.8mm bit locally, so thought a 6.5 would be ok. However the tap was extremly tight.
So I measured the narrowest part of the thread on an M8 bolt and it was 7.2mm, Re drilled the quill with a 7mm bit but the tap still jams when only a quarter of the way in :sad:
Dose this sound correct or have I just got a useless tap? (new but a Machine Mart cheapy)
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