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  1. 29-08-2014 #1
    charlieuk's Avatar
    Lives in brighton, United Kingdom.
    charlieuk
    Last Activity: 31-10-2021 Has been a member for 9-10 years. Has a total post count of 492. Received thanks 14 times, giving thanks to others 19 times.
    Dont know if any one can help but im looking for some advice on turning a part on a lathe

    basically i need to bore the same size holes in the pinion on the top as the one on the bottom and then shorten the shoulder and then continue the thread.

    the holes need to be accurate an a really good fit so there is no play but the hole sizes are not a standard drill bit. (12.68mm)

    I have a lathe all be it not that great so a little concerned about getting it right however at least the pinions are relatively cheap but not to sure what sort of tool i would be best to do it with? drill a smaller hole first then enlarge it some how?

    Im think the shaft will be a little harder though and assume that the shaft will be hardened in some way?

    best regards
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