Oooh, that's a good freebie! With your airyplane skills I'll bet you already know how to work it (would take me a year to suss that out!)
I love slide rules. They never need batteries or software updates. I've even got one on my cheap seiko watch I fly with.
Now were are getting somewhere. Stole this off fleabay. You do not want to know what Sandvik charges for this stupid thing with 5 inserts. Then found this rough Iscar holder... Missed a nice one. Oh well... 70bucks. Now to make it fit on an axa tool post. (I swear this shit never ends!) Found an XL holder at BG that says it holds 3/4" stuff. 35bucks. . All in, I've got north of 200bucks in this thing to cut shit I can do with a 14dollar harbor freight grinder. If I bought all this crap NEW and name brand, it would have tipped 500 friggen doll hairs easily! Hope it's worth it. My neighbor down the street did the same setup for his cnc lathe. Said it was worth every penny.