"M. J. Powell" wrote in message
...
In message , Keith Willshaw
writes


I did this as part of my mechanical fitters apprenticeship
for ICI in 1968. Its bloody har work and takes a LOT
of man hours

Me, too. For English Electric in '49. File and scraper work. And plenty
of 'Blue'.

Thats the drill , file it square and scrape the top flat checking
with a surface plate.

Keith