My foreman told me my coolant mix looked like weak tea

He walked by my machine last Tuesday, pointed at the sump, and said, 'That's not coolant, that's iced tea. You're asking for rust and a bad finish.' I was mixing it by eye for months. Now I use a refractometer for every batch and keep it at exactly 7%. The difference in tool life and part finish is night and day. Anyone else have a boss give them a simple tip that fixed a bad habit?

3 comments

3 Comments

jana_davis902mo ago

Yeah, a refractometer is a total game changer.

jamiesingh22d ago

A total game changer" is definitely how I'd describe something that makes me feel like a mad scientist in the kitchen. Now if only it could also tell me when my coffee's gone cold, right?

the_julia2mo ago

Thought they were overrated until I tried one. Now I get it.