Review on High-Quality 60mm Rotary Blades for Quilters, 10-Pack - Compatible with Olfa, Fiskars, Martelli, Truecut by Amber Perez

I use 60mm rotary blades to precisely cut pieces of donated fabric for charity blankets. I expect a new blade to be able to cleanly cut a web layer in one pass with normal hand strength. I struggled with these blades, squeezing harder and harder to get clean cuts, skipping the ruler and finally moving on to the next blade in the pack, thinking it was an anomaly. nope After blade number FOUR and my hand aching from the hard squeeze, I gave up and went back to the higher blade. IMMEDIATE relief, no effort and a clean cut in just one pass so I threw the rest in the bin. I took a chance as they were "sponsored" by Revain. Yes, they fit my Olfa cutter but seem to be thinner ("wobbly"). As I've gotten older, I've learned to be more mindful of stress and hand abuse, and it's clearly been worse.