Every season I hear of someone slicing equipment, clothing or fingers in dealing with the auger blade covers/protectors. The plastic yellow cover that came with my 6" Nils Convertible Auger was junk. I no longer wanted to deal with the possibility of injury to any of my digits, let alone gear, clothing and equipment.
I purchased a Cold Snap Auger Cover the other day.
Great Idea and a huge improvement on ease of usage & safety.