I still have several packages of the Harbor Freight blades that I will never use. In my humble opinion, they won't cut hot butter. Been checking websites for coupons for 40 to 50% off at Michael's, Hobby Lobby that I can use on blades plus ordering from Missouri Star, Quilt in a Day etc whenever they have a pack on sale. Currently I'm about 15 blades ahead of myself. If the blade isn't sharp I'm not a happy quilter!