Building the Firestone 120x48x68 Tire Molds with a BETTS Vertical Boring Mill
![](https://overlandtrains.com/wp-content/uploads/3797_002-1-scaled.jpg)
R. G. LeTourneau, Inc. was no stranger to building huge machinery. However, it wasn’t until 1952 that R. G.’s son, Ben LeTourneau built the tire mold that would help shape…