Make the guide sleeve out of air hardening drill rod, and you can use it more than once. Get it cherry red with a torch, and when it cools down it will be harder than woodpecker lips!
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!