My first real machining project. My aircraft mechanic is chomping at the bit now that he knows I've been setting up a beginner machine shop. Suddenly, the sky is the limit and now it's time for me to pay him back. In his defense, I do owe this guy big time. So anything I can do to help out or make his life a little easier, I'm game! He needs a simple tool that reaches inside a particular jet engine to remove and install the fuel nozzles. Well, wouldn't you know this stupid tool costs $1100. Welcome to the airplane world. So I find a chunk of steel for free. I hack off about 8" because I'm guaranteed to dork this up. I need to bore this completely out between .718 and .722. I decided to drill it about half it's length and just work the end for now. His drawing was on a cocktail napkin and lacked details I need. Outside not too critical he says, so I just give it a bit of a clean. Drop it in the positioner and drive a cutter by each side without moving it. Having a 3 jaw on the table makes jobs like this a breeze for someone like me. You can see in this photo, I have lots of boring still to do. .200 Close enough for my eyes. I think this gets milled smaller, but waiting on the boss. These are wall thickness. Nothing cosmic so far right? So why the expense? Only thing I can figure is it gets a 3/8" socket drive sunk in the other end. I have the solution for that bs. It's called a cheap socket welded on the end. If this works for us, I have to do the sister for this tool..... Another no brainer, but slotted. This stupid tool is $1700! I swear these assholes must just throw a dart at a board with dollar figures on it. I will say Rolls Royce will be lucky if I don't crank out a shit ton of these and dump them on ILS or ebay for peanuts!