grinding inside large holes/pipes/etc. and casting fettling too .
I once spent close on two weeks grinding some bushes in a clamshell grab ... that'd been machined undersize by mistake ...the holes were 7" dia and 9" long .... or were supposed to be .... were an 1/8" under in the bore .... the grab shell was 9 ton .. and a bit of a faff to return to the horizontal borer .. 'specially as there was another job already in it ... I got given the job as they considered I was the most likely to do a decent job ... and least likely to jack ... I came close after spending 8 days on it .. .... but did get the pins to fit and the clam to go back together ........as said "
hateful things .... spent a fair bit of time wielding one "
