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  1. pohbah

    Cutting Acme Screw Threads...

    We cut acme pin/boxes everyday, do you know there are different types of acme thread forms? also different classes of fit,ie:- 2g-3g-4g, smaller the number of fit 2g the bigger the tolerance between male and female thread,is the pitch on your lathe ok?---- if you drop me an e-mail with the...
  2. pohbah

    Drilling Inconel 718

    beavers is about right another company to try for tooling would be OSG who sell good quality tooling, but rather you than me using driven tooling,dependant on the depth of the hole i know you will have your problems, we always bite the bullit and if possible set up a cnc m/c centre to drill...
  3. pohbah

    Chamfer square hole

    spark erode the form
  4. pohbah

    best way to measure 8 microns ID

    Dependant on the length of the bore there are various ways, bore micrometers,bore clocks(diatest for smaller bores like this) or CMM.
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