I actually sat through a portion of my companies safety orientation. It stated that using a grinder in the 1 o'coHad all the safety gear on...goggles, earplugs, leather gloves, and welding coat. Nothing on my neck.
It was a freak kickback. Feels like road rash.
lock to 3 o'clock position if the wheel catches or bumps off the material will push the grinder away from the user. 9-6 position will force the grinder towards the user. I know it's nearly impossible to always work in that position, but I didn't know that little tip.