Quote Originally Posted by brutal View Post
Most of my good ones were pilfered from the Army and/or IBM toolkits.
The set I use was manufactured by Caterpillar.

I've never purchased anything from Caterpillar. However, Dad worked there for 30 years...

I guess it may have inadvertently fallen into his lunchbox at some point.

I measured them with my expensive Mitutoyo digital calipers and for the most part they are still dead on. Some of the thinner ones have worn tips- not a lot, about .0005. Not bad for at least 40 years old and hundreds valve and points adjustments.