I use these blades to cut vinyl, they leave a double cut which is very annoying. I had the same problem with fabric. It may have been a bad draw, but I will buy the Olfa brand again. Edit: I've tried a few more blades and they work as advertised and are very good. I am not giving 4 or 5 stars as not all 10 blades are suitable for my needs. However, I am happy with the price of the ones I can use.
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