Crazy slow on the feeds and speeds, diamond coated tooling (Harvey is where to go). Macor is highly structurally compromised compared to other ceramics to make

Crazy slow on the feeds and speeds, diamond coated tooling (Harvey is where to go). Macor is highly structurally compromised compared to other ceramics to make it machinable. Typically, production (which is to say, low volume med/aero/optics parts) ceramic machining is limited to cleaning up datum surfaces, walls, mating surfaces, holes and (god forbid) threadmilling tapped holes. It sucks. Totally not capable of meeting iPhone scale at all. (source: author of linked article)