Hi, manage to strip the threads in my drive side atlas crank, does anyone know of a bike shop in south yorkshire that will be able to drill it and put a helicoil in

cheers

You might be better going to an engineering firm as I doubt a bike shop will have the kit to do it.I have the same problem but non drive side on a tandem stoker chainset.So same question but in Somerset

cheers, I will look into a local engineering firm

Use Sheffield engine Services in Hillsborough

Helicoil no, but a bush does exist for 9/16" x 20tpi pedal threads l & r.
Its too specialised for anyone but the cycle trade to have.

page 7
http://www.weldtite.co.uk/pdf/Weldtite_Catalogue_2010_Tools.pdf

http://www.cyclus-tools.eu/tretkurbeln.html?&L=3

http://www.ceeway.com/

page 23
http://www.vartools.com/catalogue_var.pdf

I think the OP like me has stripped the extractor threads not a pedal thread

Actually having looked more closely is that repair bush what we need ?

Cheers Macavity, just need to find somewhere that will be able to do it

And it is he pedal threads

Sorry thats unlucky I have never buggered those up.

ANY decent bike shop will have the taps and bushes.