Les Bird Posted July 18, 2020 Share Posted July 18, 2020 Can anyone recommend a supplier of a 10 ba tap for fitting Romford crankpins? Link to post Share on other sites More sharing options...
PenrithBeacon Posted July 18, 2020 Share Posted July 18, 2020 Eileen does them Link to post Share on other sites More sharing options...
Hibelroad Posted July 18, 2020 Share Posted July 18, 2020 Squires do them Link to post Share on other sites More sharing options...
Les Bird Posted July 18, 2020 Author Share Posted July 18, 2020 Thank you both Link to post Share on other sites More sharing options...
sagaguy Posted July 18, 2020 Share Posted July 18, 2020 RDG tools. 1 Link to post Share on other sites More sharing options...
RMweb Gold Bucoops Posted July 18, 2020 RMweb Gold Share Posted July 18, 2020 I just bought a cheap (but decent brand) used one off ebay. IIRC it was a Dormer one for about £3. Link to post Share on other sites More sharing options...
doilum Posted July 18, 2020 Share Posted July 18, 2020 If you haven't already got some, order a set of pin vices at the same time. They make perfect mini tap wrenches. Great also for holding crankpin bushes whilst cutting the thread for Slater's O gauge wheels. 1 Link to post Share on other sites More sharing options...
PenrithBeacon Posted July 18, 2020 Share Posted July 18, 2020 For such small taps they are essential. If you use a tap wrench you are likely to impart a slight sideways force and it doesn't take much force on small taps to break them. 1 Link to post Share on other sites More sharing options...
Hibelroad Posted July 18, 2020 Share Posted July 18, 2020 Just a point, I don’t know if you are an experienced tap user but if not you need to buy a taper tap and once it starts to bite turn it a half a turn at a time then back a quarter turn in order to break the swarf. O level metalwork set me on the right road for life ! 2 3 1 Link to post Share on other sites More sharing options...
Les Bird Posted July 18, 2020 Author Share Posted July 18, 2020 Thanks for all the advice. With luck my J69 can now acquire a set of wheels! Link to post Share on other sites More sharing options...
kitpw Posted July 18, 2020 Share Posted July 18, 2020 .....and lubricant is also helpful for tapping and drilling - cutting fluid for steel (WD40 cutting fluid or CT90 or similar): parafin is sometimes recommended for brass. Personally I use cutting fluid for all metals (except aluminium) as it reduces breakage, speeds cuttting and helps clear chips/swarf, particularly when using small drill pieces and taps. I find it essential for tapping threads of any diameter. I believe Jewellers use beeswax - I only use it for aluminium. Kit PW A 1920s 7mm terminus layout: Swan Hill - https://www.rmweb.co.uk/community/index.php?/blogs/blog/2502-swan-hill/ 1 Link to post Share on other sites More sharing options...
RMweb Premium polybear Posted July 18, 2020 RMweb Premium Share Posted July 18, 2020 For Taps and Dies you can do a lot worse than Tracy Tools: https://www.tracytools.com/taps-and-dies/BA-taps-dies/10-ba They offer Carbon Steel (CS) or High Speed Steel options (HSS) (I'd go for HSS) - 10BA HSS is £6. No connections etc etc. HTH 1 Link to post Share on other sites More sharing options...
RMweb Gold Roy Langridge Posted July 18, 2020 RMweb Gold Share Posted July 18, 2020 (edited) Don’t forget The Tap & Die Company, I always use them when I need things like this. https://www.tap-die.com/index.html Roy Edited July 19, 2020 by Roy Langridge Typo 1 Link to post Share on other sites More sharing options...
RMweb Premium uax6 Posted July 18, 2020 RMweb Premium Share Posted July 18, 2020 6 hours ago, kitpw said: .....and lubricant is also helpful for tapping and drilling - cutting fluid for steel (WD40 cutting fluid or CT90 or similar): parafin is sometimes recommended for brass. Personally I use cutting fluid for all metals (except aluminium) as it reduces breakage, speeds cuttting and helps clear chips/swarf, particularly when using small drill pieces and taps. I find it essential for tapping threads of any diameter. I believe Jewellers use beeswax - I only use it for aluminium. Kit PW A 1920s 7mm terminus layout: Swan Hill - https://www.rmweb.co.uk/community/index.php?/blogs/blog/2502-swan-hill/ Don't used wd40 on anything, especially anything with any sort of plastic or otherwise electrical insulator. In the Romfords they are insulated with paper, which WD will breakdown, and WD breaks down most plastics and more importantly tufnol insulation... I've said it before and I'll say it again, the only use for WD40 is filling your mates motorcycle/ car engine full off and then putting the plugs back in while they aren't looking.... Andy G 1 Link to post Share on other sites More sharing options...
sagaguy Posted July 18, 2020 Share Posted July 18, 2020 I`ve used an eclipse 141 chuck type tap wrench for as long as i can remember.It will take 14BA taps to 4BA taps and you use the barrel as the wrench,very sensitive,it will also hold small reamers. https://www.cromwell.co.uk/shop/cutting-tools/tap-wrenches/chuck-style-tap-wrenches-english-type/f/5636 Ray. Link to post Share on other sites More sharing options...
RMweb Premium nick_bastable Posted July 19, 2020 RMweb Premium Share Posted July 19, 2020 10 hours ago, kitpw said: .....and lubricant is also helpful for tapping and drilling - cutting fluid for steel (WD40 cutting fluid or CT90 or similar): parafin is sometimes recommended for brass. Personally I use cutting fluid for all metals (except aluminium) as it reduces breakage, speeds cuttting and helps clear chips/swarf, particularly when using small drill pieces and taps. I find it essential for tapping threads of any diameter. I believe Jewellers use beeswax - I only use it for aluminium. Kit PW A 1920s 7mm terminus layout: Swan Hill - https://www.rmweb.co.uk/community/index.php?/blogs/blog/2502-swan-hill/ spit works well with small taps Nick B 2 Link to post Share on other sites More sharing options...
PenrithBeacon Posted July 19, 2020 Share Posted July 19, 2020 11 hours ago, uax6 said: Don't used wd40 on anything, especially anything with any sort of plastic or otherwise electrical insulator. In the Romfords they are insulated with paper, which WD will breakdown, and WD breaks down most plastics and more importantly tufnol insulation... I've said it before and I'll say it again, the only use for WD40 is filling your mates motorcycle/ car engine full off and then putting the plugs back in while they aren't looking.... Andy G Generally speaking this is true, but there are applications for WD40 in model railways. I recently had an issue where I had locked up hornblocks with paint. I used WD40, applied with a cocktail stick, one drop per hornblock, to free them. They're fine now and because of the way I applied the stuff no danger of contaminating any other part of the chassis. 1 Link to post Share on other sites More sharing options...
Tiptonian Posted July 19, 2020 Share Posted July 19, 2020 14 hours ago, uax6 said: Don't used wd40 on anything, especially anything with any sort of plastic or otherwise electrical insulator. In the Romfords they are insulated with paper, which WD will breakdown, and WD breaks down most plastics and more importantly tufnol insulation... I've said it before and I'll say it again, the only use for WD40 is filling your mates motorcycle/ car engine full off and then putting the plugs back in while they aren't looking.... Andy G Beware of over-generalization! Kitpw did say WD40 Cutting Fluid. WD40 make a range of fluids, some of which may find a use in railway modelling, (e.g. silicone lubricant). Usual disclaimers etc.. https://www.screwfix.com/c/auto-cleaning/lubricants/cat810058?brand=wd_40 3 Link to post Share on other sites More sharing options...
RMweb Premium uax6 Posted July 19, 2020 RMweb Premium Share Posted July 19, 2020 Ah, I know what he said, but what did most people read? probably WD40 only..... ;-} Andy G Link to post Share on other sites More sharing options...
Il Grifone Posted July 20, 2020 Share Posted July 20, 2020 (edited) I bought most of my taps from 'Proops' on eBay. You get a set of three for a reasonable (i.e. Grifone friendly) sum. They come in a neat plastic case (or at least mine did). (Usual disclaimer.) https://www.ebay.co.uk/itm/Proops-10-BA-3-Piece-Tap-Taps-Set-Taper-Second-Plug-Model-Engineering-M0961/113212037348?hash=item1a5bf698e4:g:FbcAAOSwSX9XA4oD I would stress the need for lubricant and 'backing' off' especially with small taps (and dies). Edited July 20, 2020 by Il Grifone 1 Link to post Share on other sites More sharing options...
Les Bird Posted July 20, 2020 Author Share Posted July 20, 2020 11 hours ago, Il Grifone said: I bought most of my taps from 'Proops' on eBay. You get a set of three for a reasonable (i.e. Grifone friendly) sum. They come in a neat plastic case (or at least mine did). (Usual disclaimer.) https://www.ebay.co.uk/itm/Proops-10-BA-3-Piece-Tap-Taps-Set-Taper-Second-Plug-Model-Engineering-M0961/113212037348?hash=item1a5bf698e4:g:FbcAAOSwSX9XA4oD I would stress the need for lubricant and 'backing' off' especially with small taps (and dies). That looks like a good deal. Order duly placed Link to post Share on other sites More sharing options...
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