what kind of auger is it? If its cheapo, you may want to upgrade...I have a 6 inch lazer that is 8 years old, cuts hundreds of holes, and still has the original blades. If you baby them, and softly set them down on the ice, they will last along time and still cut awesome. Many years ago I had a blue mora, and it would eat 2 sets of blades a season...thay just dont hold a good edge.