Somehow I expected better. I got a set from my father-in-law from Craftsman when Craftsman meant a good thing and one ended up breaking. They are at least 50-60 years old. They're twice the size and still loyal. The ones I just bought are thin and slightly off 10-15 degrees from 90. I wanted to return them but good old Revane said to keep them and refunded the cost. That's why I appreciate Revane so much.