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trades > fabrication > metal > welding
document updated 10 years ago, on Apr 8, 2014
(generally)

grinder safety

Grinding wheels have a huge amount of energy stored, and when they break, they can do a lot of damage. (seriously, it's NSFL)

The shards can even ricochet off of things, so a grinding hood is a very good idea.

chemicals that are bad to vaporize