chect this part out, its some kind of manifold air craft part from a solid piece of Titanium. we coat and finish grind the two bigest bores on the part. I dont work on this part at all when it comes in the shop but I allways look at it everytime it comes in the door. who ever the programmer that programmed this and if he was also the machinist that machined it is one bad ass programmer/machinist. the number of operations to do this part I bet was alot. there is so much profile machining on this thing. and everything is close tollerence too.