Alec Pringle Posted October 4, 2016 Report Share Posted October 4, 2016 A thread elsewhere on Forum reminded me of how often folks use the wrong size spanner . . . . . and regret it. Herewith a link which I have mentioned in years gone by, updated and expanded since last I mentioned it . . . . . . A most useful table of relative sizes of jaws, vast quantities of useful advice re spanner handling, and more follow-up links for even more specialist data than you could ever need. http://www.sat.dundee.ac.uk/psc/spanner_jaw.html Cheers Alec Quote Link to post Share on other sites
stillp Posted October 4, 2016 Report Share Posted October 4, 2016 I believe the original Whitworth standard specified different sizes for the bolt head and the corresponding nut, so that it was not necessary to have two spanners of the same size in order to tighten a nut on a bolt. Clever chap, Mr Whitworth. Pete Quote Link to post Share on other sites
hpremote Posted October 4, 2016 Report Share Posted October 4, 2016 A v. useful article. Thanks, Alec. Tim. Quote Link to post Share on other sites
badhuis Posted November 12, 2016 Report Share Posted November 12, 2016 I did come across this chart years ago, printed it and taped it to one of the columns of the 4 poster lift. I used it quite often, when you need a spanner just a bit smaller or larger than the standard. Quote Link to post Share on other sites
Peter Cobbold Posted November 13, 2016 Report Share Posted November 13, 2016 (edited) Thanks Alec, bookmarked. It must be essential reading in the Dundee University Satellite Receiving Station.....? Peter Edited November 13, 2016 by Peter Cobbold Quote Link to post Share on other sites
BlueTR3A-5EKT Posted November 1, 2021 Report Share Posted November 1, 2021 (edited) Updating the link that Alec gave, which now fails to connect for me. Chart - https://www.crawford-space.co.uk/old_psc/spanner-jaws.pdf Text - https://www.crawford-space.co.uk/old_psc/spanner_jaw.html https://eicac.co.uk/Spanner-Size-Comparision-Chart Edited November 1, 2021 by BlueTR3A-5EKT Additional Info Quote Link to post Share on other sites
Ali King Posted November 1, 2021 Report Share Posted November 1, 2021 Thank you. Copy now on my garage wall. Alistair. Quote Link to post Share on other sites
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