I had a Sears die set of this size but it didn't seem to cut as deep and smooth as this Hanson die. After using both dies on some nylon bolts for easier cutting, I tested the nylon bolts with both a steel nut and a nylon nut. Both nuts were relatively difficult to turn after using the Sears dice, but were easy to turn after using the Hanson dice. Please! I still have some "Hanson Dye" as spares for the future.