Be careful with grinder discs

What size of disc have... want to see some original pictures of this ...

after working as a fabricator for 9+ years i've learned a couple things.
1. position your body so that it is out of the plane of the sparks. (old jeans are netorious for catching fire.) and when it binds and catches it will kick out.
2. close fitting safety glasses or goggles, and a faceshield. always 2 layers of eye protection. faceshields have different impact rating requirements than safety glasses,and are designed to deflect mutiple small particles, where safety glasses are designed to protect against 1 impact.
3. eye protection is a consumable and should be thrown away after it has done it's job.
4. moisture/ humidity destroys grinding discs. they get hot and the water rapidly expands into steam causing them to explode.

there are tons of safety videos on youtube