I have read where others buy the blades for rotary cutters from Harbor Freight. Our store is too large for me to walk it, so I sent my DH for them. He couldn't find them or rather he found the "bumpy" ones. Isn't there another name that Harbor Freight uses? We're going to Beaumont today. There is a coupon for a free item from HF, so I wanted DH to look again. Oh, I'm also going by Joann's. When I told DH about the coupon, then mentioned Joann's, he started laughing and said he knew where I was heading. Well, of course!