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Graham C

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Posts posted by Graham C

  1. On 09/05/2021 at 17:18, Ian J. said:

     

    I don't believe so. In fact, such a drill might cause even more chipping and/or splitting of the acrylic. The drill for acrylic is as:

     

    https://www.amazon.co.uk/Plastic-plexiglass-Polycarbonate-Norseman-BG4600A/dp/B07D1BGH53/ref=sr_1_8?dchild=1&keywords=norseman+drill+bit&qid=1620577015&sr=8-8

     

    but that's the U.S. imperial set. I need them in 1mm increments metric. But as @doilum says, I may have to settle for standard metal bits and work up from a very small size to the 5mm hole I'm after.

    Alternatively, buy the imperial bits and use 3/16" screws (= 4.6mm, so not far off 5mm)? Looks like those are still fairly readily available?

  2. 8 minutes ago, Dungrange said:

    https://www.ebay.co.uk/usr/hjonesengineering

     

    The above on E-bay seems to list a back-to-back gauge for SM-45 and track gauges for both SM-32 and SM-45, so I suppose you could contact him and ask if he produces a back-to-back gauge for SM-32.  They look as though they are machined in plastic, so I've no idea how good they are.

     

    I couldn't see anything else on a quick google.

    Yep, I have done so. Will post on here for future reference if he comes up trump's.

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