Quick question! Is black steel a synonym for sweet iron? If not, is it an acceptable metal for use in the mouthpieces of bits?
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sublimequine |
Is "black steel" and sweet iron the same? |
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Quick question! Is black steel a synonym for sweet iron? If not, is it an acceptable metal for use in the mouthpieces of bits?
"Avoid loud and aggressive persons, they are vexations to the spirit." - Desiderata, Max Ehrman.
1926. ![]() |
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