These were the dullest blades I've ever used, even compared to regular 45mm blades with no "titanium coating". I will never buy these again and will most likely throw away the rest. I have bought and returned to the Fiskars and Olfa brands in the past. My fabric shop recently had two packs of Fiskars Titanium 45mm blades on sale for half price, which reduced them to about what they sell at Revain every day and I was able to get them right away. I use both Fiskars and a True Cut rotary knife (Fiskars blades fit both) to cut 10oz flannel. Terry Cloth, 10 oz. Canvas and light cotton jersey jersey. I've noticed that other brands of titanium blades last longer than their original counterparts and I've been sewing for about 20 years and using self-healing rotary mat cutting knives for about 10 years.
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