Pin vise bit number question. - Printable Version +- (https://bigbluetrains.com) +-- Forum: Branchline (https://bigbluetrains.com/forumdisplay.php?fid=45) +--- Forum: Scratchbuilding and kitbashing - All Scales (https://bigbluetrains.com/forumdisplay.php?fid=27) +--- 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 |