How To Use The Dying Art Of Using Toolmakers Buttons

Here I speak and demonstrate about Toolmakers Buttons. An age old method of accurately placing holes on a part, using them in conjunction with Jo blocks, now called slip gauges. They are then Dial Indicated on the machine, removed and the hole machined. This has largely been replace by the invention of the Digital Readout, as they can accurately place holes even at an angle, if you know how all the functions on it work. LOL.