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Best Way To Drill A 3mm Hole Through A Pinball Ball.
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As above. Need a 3mm hole right though a pinball but I want to do it in house and not off to get the work done.
I thought pin punch a mark and drill with my drill press...Hmmmm, wrong. I've drilled hardened metal many times but this thing is round and chromium coated. I tried a Sutton tap as in tap and die knowning those taps are properly hardened and it should leave a mark the drill bit can bite into and once the drill bit gets through the hard outer surface, the drill will go straight through.
Wrong again, actually chipped the sutton tap tip.
Should I use heat to soften the metal?.
Open to suggestions in this one.
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