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gbj_tester
Ti being such a poor thermal conductor is what makes it such a bastard to work. Machining it takes copious amounts of cooling fluid, and if you’re not generous enough it goes badly wrong. Mike Burrows has a souvenir piece of titanium that he was turning into a BB axle; he was boring it out and the drill bit spot-welded itself inside the piece and the drill shank shattered. He mounted on a piece of wood as a reminder.