I love that reply. I've never owned a Machinery's handbook for the simple reason that I was a toolmaker, not an engineer or designer, and after making chips for the last 45 years everything I need to know about the machining I do is already in my head, due to experience and actually listening to and retaining the information that was taught to me in Shop Theory class. The only book I have are trig tables, which are in a shirt pocket version I have. If I ever need to use one I'll look it up on the internet, but in all this time I doubt I ever will. And for all you conspiracy guys, I wonder if Gerstner was paid to create that center drawer in their toolboxes. Hmmmmmmm.
Let's add to the conspiracy, the drawer was originally made for the American Machinists' Handbook. My dads very old Kennedy tool box has a drawer that is not big enough for the Machinery's Handbook but is just right for the American Machinists' handbook. It's a little bit smaller. Did I say Kennedy tool box?
yes, it was a joke, my garage floor is rough, but not that bad. I have four of them from #17 to #27, in various places in the shop, along with 3 or 5 various handbooks from Hartford Steam Boiler, the USN, Curtiss-Wright and a few others.