Review on Rotary Cutter Blades 45mm - 10 Pack (Silver) - Replacement Blades for Fiskars, OLFA, Martelli, Dremel, Truecut - Refill for Fabric Cutting in Quilting, Scrapbooking, Sewing, Arts & Crafts - SKS-7 Blade by DAFA by Morgan Gilmore

They are perfect. They are very sharp, I shaved off the hair on my arm with one. You're more complex than my Nicholson file. They fit my cutter exactly like the originals and are the same thickness. I see no difference other than the name. They come with anti-rust oil and the same beautiful plastic case as the others. Have to see how long they last. For ¼ the price plus a good tape measure on top of that, if it lasts even half that, I'll win. For reference, the one with the red cross is the original that came with my cutter, which I ruined by running over the pin. Cuts well except for gaps every time a tiny notch appears. The original does not have cutouts around the center hole, but replacement parts from the same company have the same cutouts.