I'm usually fine with Irwin tools. This is an exception. I understand this is a cheaper set of bits but at least I expect them to be sharp. At least half of the ones I've used have improperly sharpened edges, rendering them almost entirely ineffective. I haven't decided yet whether to return them, I have the tools I need to clean up the edges. But buying a fuzzy Forstner set is like buying a car with no tires.