I used this cutter to cut a total of nine 4" long, 1 1/4" deep slots in chair legs. This was his first assignment. Even with slow, shallow cuts (4-5) for each slot, the tips broke at the 8th slot. I really "babbled" the beat and it still broke. I always thought Freud was the leading brand but this will be the last piece of Freud I buy. They are too expensive to throw away.