Damaged crank extractor/dustcap threads...

Sorry you've had no replies. I've never done this. Have you ever cut a thread before? Maybe your record pista cranks aren't the best place to have a 'first go'. Have you tried screwing in the crank extractor and seeing how far it goes in easily (don't apply any pressure)?

I have cut threads before (back home my father has a workshop), but in the UK i have no tools nor vice and etc.

Problem is that beginning of the thread is damaged... that's why i have chose piloted thread chaser... another option is to try and remove BB without extracting L crankarm (i know it may be tricky or impossible) as i have a little bit of space between crankarm and bb cup to try and tuck tools in.... and undo bb lockring/cup.. has anyone tried this?

thanx for your compassion guys...

i was considering a wedge type system (one used for bmx and generally un-extractable crank if i'm not wrong), but it looks destructive and savage in terms of the damage to bb bearing cup on the other hand bb cup is cheaper easier to find than L pista 165 crankarm