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+--- Thread: Pin vise bit number question. (/showthread.php?tid=7345)
Pin vise bit number question. - Rscott417 - 02-06-2015
I want to add details west knuckle coupler and bracket casting to a couple engines I'll be working on. It says to drill a .031" hole, what size drill bit is that?
Re: Pin vise bit number question. - lajry - 02-06-2015
1/32" is 0.03125
Re: Pin vise bit number question. - BR60103 - 02-06-2015
The chart I have shows .031 as a 68 drill.
Re: Pin vise bit number question. - doctorwayne - 02-06-2015
A #68 bit is .031", but the 1/32" bit will work just fine, too.
If you really want to cover the spectrum of sizes, you'll need a set of fractional bits, numbered ones, lettered ones, and probably metric ones, too.
Wayne
Re: Pin vise bit number question. - shortliner - 02-07-2015
BR60103 Wrote:The chart I have shows .031 as a 68 drill.
Is there any chance of getting a copy of the chart, or one that shows conversion of drill-bit sizes for inches/millimetres/numbers? It would be a really useful thing to have. Please - pretty please!
Re: Pin vise bit number question. - Rscott417 - 02-07-2015
Thank you for the info guys. Details west castings usually have the number of the bit you need to use, I thought it was odd they only had the size in inches for this casting.
Re: Pin vise bit number question. - shortliner - 02-07-2015
Cancel my previous request - an internet search has provided several - thanks anyway
For reference this is the one I will be using <!-- m --><a class="postlink" href="http://tubeamplifierparts.com/handy-amp-info/drill-bit-size-chart.html">http://tubeamplifierparts.com/handy-amp ... chart.html</a><!-- m --> - there is a large number of other choices
Re: Pin vise bit number question. - BR60103 - 02-07-2015
Shortliner:
The chart I have came from (IIRC) an early issue of Model Railway Journal. The NMRA has it in their data sheets D1c. It's also shown on the little pack of drills that I have.
Re: Pin vise bit number question. - shortliner - 02-08-2015
Thanks, David