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Simple and Easy Broken Tap Extraction – Nitric Acid vs Alum

“In this video two “sure-fire life saving” methods for removing small taps broken in aluminum.

Nitric Acid and Alum.

Only one works.

It's proven to be the cheapest, and simplest way to chemically dissolve taps.

I don't see any reason why this wouldn't work on bolts too.”

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