If somebody could write a CNC program to turn out repair sleeves by the dozen, the installation machining and finish-grinding process wouldn't be as labor intensive as making the sleeves one or two at a time.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!