5" grinder backer

motorpirate said
we always just stack up 5 or 6 pads..
then you can change them out without walking back to the bench.

Great idea!

toolmanmike said
And, those grinders run close to 20,000 rpm. Match a backing plate with the rpm. They are like a hand grenade when they explode.

A friend of mine had a cut off wheel explode and hit him in the face. Full thickness laceration down to the bone. He now has a straight line scar from the corner of his mouth to the bottom of his chin. He looks like a ventriloquist dummy.