oh yes, thank you mcimes the problem what i have got, is that it was needed to remove the sleeve from the lathe, change the tool, then put the sleeve back with the new tool

it was not possible to change the tool without removing the sleeve, because there was little clearance, thus tool nose was pretty close to the 'wall', and there was a lot of overhang for the sleeve

it was not possible to achieve repetabiliy for that sleeve, each time it was in a different position ... it has been a while since that setup ended, but i believe i should measure the play between the bore and the sleeve, because i remember that i was able to take it out / put it back relatively easy ... too easy / kindly