Hi! I just spoke with my son in law who cleans carpets and does some repair, he suggested trying some of the wholesale carpet stores; places that sell the supplies for laying carpet. He thought their prices would probably be as good as HF and probably wouldn't have to wait because they would keep them in stock. Anyone who cleans carpet and does any kind of repair, they have to have the supplies, the cutters and blades
I got lucky when I went to HF today, and was able to find four packages of blades. Bought all they had!
I'm also going to check Lowe's and Home Depot because they sell the supplies for laying carpet. They might have them! Take care,Chris