Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Tried a new method of flaring copper and brass for chimney stacks.
Annealed the copper and chucked it up in my lathe and used an old brass plumb bob in the drill chuck
and little bit of tap cutting fluid as lubrication, winding in the tail stock flared the copper nicely..... worked out well
and looks great when polished up. I've done a few like this now.
Doesn't leave any marks that you get when you use a plumbers flaring tool -

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Good tip...nice result.