I think you'll fined those blades have a 1/4" twist down from the center of the blade. So you need to stick a 1/4" round stock under the edge of the blade vice. Also keep the "stick out" from the vice as short as possible. Don't press so hard, let the grind wheel do the work. Best wishes.
Thanks so much for the advice as I’m new at this. Thanks for watching my video.
I think you'll fined those blades have a 1/4" twist down from the center of the blade. So you need to stick a 1/4" round stock under the edge of the blade vice. Also keep the "stick out" from the vice as short as possible. Don't press so hard, let the grind wheel do the work. Best wishes.