TGPB Posted February 8 Report Share Posted February 8 Have you seen this before? I have a 5/16 1210-W Proto combo wrench that is obviously not 5/16" It is slightly larger than 1/2" and smaller than 9/16". I'm saying it is 13mm. I contacted Proto to see if it was British Standard and they said no. Quote Link to comment Share on other sites More sharing options...
Altan Posted February 8 Report Share Posted February 8 1 hour ago, TGPB said: Have you seen this before? I have a 5/16 1210-W Proto combo wrench that is obviously not 5/16" It is slightly larger than 1/2" and smaller than 9/16". I'm saying it is 13mm. I contacted Proto to see if it was British Standard and they said no. Probably it has been stamped with a wrong number, it happens sometimes, I had a lot of German made screwdriver bits stamped wrongly. Quote Link to comment Share on other sites More sharing options...
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