On 1/17/2021 3:48 AM, Puckdropper wrote:
I'm installing a railing and need to cut the metal. I've got a hacksaw and
a portable circular saw, so naturally which one do I grab? The circular
saw.

I found out why they say not to cut steel with most blades. It throws hot
chips all over and dulls the blade pretty quick.

Lesson #2: Safety glasses aren't the end-all of safety. A chip found its
way past the glasses and while I'm ok it's a little sore there. I should
have been wearing a full face shield but I didn't have one on site.

Learned something else... Sanders are awesome at deburring steel. I tried
doing it with a file, then switched to the sander and wow what a
difference! Got the piece deburred, rounded, and cleaned in a minute
rather than taking 5 or more with the file.

Puckdropper

That is why some safety glasses come with side shields. In most
manufacturing companies where I have worked, the standard issue safe
glasses have side shields. As you said if you are working in a rain of
sparks you should have been using a full face shield.

This applies to corrosive liquids also. For the routine handling of
corrosive liquids you should always use safety glasses with side
shields. Where you may get splashing, face shields are a must.

Many years ago when I was working in a lab, one technician was digesting
an organic in a crucible. It did not go as fast as he thought and
leaned over and looked into the crucible, Unfortunate just at that
moment it splattered. Fortunately the tech had side shield safety
glass, but for weeks afterwards had yellow spots all over his face from
the nitric acid. All over except behind the side shields and eye glasses.

Safety glasses with side shields are required by federal government
workplace regulations for these industries.