Red Sleeper
Active member
Found these when cleaning out my tool box this past weekend from my machine shop days. They came with a group of tools I purchased, never used them but thought they were neat.
I’m sure they are for measuring spindle speed, just wondering if someone can shed some light on their exact use.
They smell like 1970.
I’m sure they are for measuring spindle speed, just wondering if someone can shed some light on their exact use.
They smell like 1970.