Originally Posted by
dunster
A lot of us have purchased rotary blades from Harbor Freight. They're meant for carpet cutting but fit the major rotary cutters. I've been happy with mine, but some people have had problems. (Harbor Freight reportedly will replace or refund if you're not happy.) If money is tight, you might try their blades - much, MUCH cheaper than anywhere else. I have heard more bad reports than good ones on rotary cutter sharpeners. Usually when my blades go bad it's because I ran over something I shouldn't have and caused a nick in the blade. Sharpeners don't help with that.
The blades I received from Harbor Freight were horrible and would not cut anything unless I ran the blade over about 3 times. I tried them on different mats, tried them in different holders and they still were bad. I was really disappointed because I had heard good things about them. I'll bet that they get their supply from different places in each state.