Re: Show us your drills!
That sounds like a valve-lapper.
Not our sort of valves, but poppet valves in the cylinder head of an engine. Some such valves came with two pre-drilled holes to suit the pins on the business end of a motorised lapper.
Smear on a dab of valve grinding paste onto the sealing face and insert the tool into the two holes and get going. Keep rotating the tool so lapping doesn't move back and forwards repetitively....
80 Watts is about right, it doesn't need a lot of power.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
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