Review on 🔪 Ultima Rotary Cutter Blades - 10 Pack, 28mm, 45mm & 60mm - Fits Fiskars, Olfa, Martelli and TrueCut - Perfect for Quilting Fabric, Leather, and More! by Denise Davis

I have used all brands of rotary knives. I can't tell the difference between branded blades and these blades are no different than branded blades. I stamped the replacement date on the new Olfa blade and put this blade in another vinyl cutter. I have switched cutters as I have used them and so far both cut the same and it has been over 3 months since I have used both cutters. One thing that quickly dulls a blade is the matte finish. Some seem proud that their carpet is many years old and they don't realize that the carpet has dried out and no longer has the self-healing properties.