So far I've gotten 4 or 5 handles from Hoffman's. I've gotten the kerf cut on all of them, and so far so good. Always cut straight and plenty far down that I've never had to cut them any further. It makes it easy since I don't have a bandsaw, and cutting with hand tools never ends up straight. And for $1 it's a no brainer. I'll be adding this on all my handles in the future.