I'm here to chime in. I bought a 1981 enco turret mill. Sure enough this came with it. Mine tightens and loosens the draw bar. It's not a specialty wrench.
Wow no one has even mentioned this. I use these
https://www.jbtools.com/goodall-32-020-antizap-service-minder-12-volt-with-clamps/?wi=off&gad_source=1&gclid=EAIaIQobChMIqK6_nIPJgwMV8CytBh1E5AVAEAQYASABEgK_bPD_BwE
I have the eaton compressor and dryer. It has a continuous run feature so it doesn't turn off and on all the time.
I run a cnc plasma table along with air ups tools and other stuff. It's been great and it's quiet. Right around 80db. You can't hear it outside my shop and I have a 30x40 shop in...