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[–] ExpertShitposter 0 points 1 points (+1|-0) ago 

Haha nice. I remember checking out some Sandvik catalogue showing a line of sub millimeter boring bars. Never seen such a tool IRL. Also knew a guy that worked as a repair man for glasses. He had stuff such as taps for M0.5 threads.

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[–] Germ22 [S] 0 points 0 points (+0|-0) ago 

6" Iscar facemill VS. 1/16" carbide endmill.