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Better Yet~ Buy a Martelli, they have a screw that does not loosen as you cut. They are handed so they fit your hand. If you have a problem, they will make it good, I even had them replace a complete cutter for me because of a screw not being hardened and my using the wrong blade in it.
Fiskars-Chevy, Olfa - Cadillac?, Martelli-Hummer!!
OzarksGma
Fiskars will replace without any hassle. I had a problem with a rotary cutter and they sent me a brand new one.
Got fabric?
I bought a Fiscars cutter in the early 90's and I still have it (couldn't afford Olfa back then). No problems with it, but have since gotten the Olfa ergonomic and there's a world of difference! I'd recommend the Olfa. BTW, the liquid referred to in the previous repliesis called Loc-Tite and can be purchased at any hardware store, just be sure you get the least permanent one so you can get the nut off to change blades.
Wendy in VA
If I had a dollar for every time I got distracted I wish I had some ice cream.
I've had Olfa and I've had Fskars. Fiskars is my choice for easy on arthritic hands. Cuts just fine.
But all of mine have to be tightened every so often. I just do it.
Do you have a lot of lint built up under the blade from the flannel? That may keep the nut from tightening.
Kathy Osterby
I had the same thing happen to me with Fiskars. I emailed them and in a week or two, I got a new rotary tool.
It must be a fairly common issue for Fiskars. I called to complain about my stinky cutting mat and asked about my rotary cutter which had the same issue... they sent me a replacement one which I have to admit I have not opened. I no longer use Fiskars rotary cutters for fabric though. I use them for cutting paper which I don't do as often...
Give them a call and see if they'll take care of yours. It is a safety issue and they didn't even ask a single question about mine. They had me take a picture and email it to them and they replaced it quickly. I received it literally 2 days later.