get one with holes for the handle (left right and top), variable speed, and the switch at the end of the grinder
pic rel
they feel a hell of a lot studier in your hand than the ones with side switch, and you can comfortably grind/polish/carve
also, don't be a pussy
the only disks that can remove fingers are the ones with teeth, STAY THE FUCK AWAY FROM THEM
the steel cutting disks might explode if you use them like a retard, but if you wear glasses who cares