This has happen to me. I got a pack one of them did not even last to the end of my job, I got a sharning thing off the internet I us on one of my old blades it work I do not think it would but it did,

I had that happen with a pkg of Fiskars. I think sometimes you just get a bad batch.

Go to Harbor Freight and buy their blades, they are 2 for 2.99 and last as long as the expensive ones.

I will tell you I have had no more problems with blades dulling early since I switched to Martelli blades and the Martelli mats!...I wait untill they have their Redlline Sale twice a year when everything is 50% off - and I stock up then. I believe they are the BEST blades and mats..........and with the cost of quilting cotton ever increasing, I cannot afford not to use the best blades and mats I can get..........

I've tried Harbor Freight blades and they were horrible. Couldn't even cut one layer. I've heard people say they had good luck with them. I think that different Harbor Freights have different blades.. it has to be something like that for some people say they are good and others that they don't work at all.

I am one of the customers that have had good luck with the Harbor Freight blades. The HF that I shop at has a hard time keeping them in stock. The person that orders for this store said they get customers from as far as 50 miles coming in asking for them. sorry some people have had bad luck, because HF blades are sooooo much cheaper.

I have had dull blades and there were 2 in th cutter.

Take your blade out of the cutter periodically and clean the blade and under the blade. Lint gets packed in there and causes skips while cutting. I also put a dab of machine oil or silicone on a Q tip and wipe the blade and the area where the blade sits. Emily

take off the parenthesis at the end of the link
It worked for me after I did that. Didn't notice it at first

I also use the electric Tru Cut sharpener. Don't buy the less expensive one. You won't be satisfied with quality. I bought their higher priced one and have had the same results as stated in the quote below. But I'm also going to head over to the Olfa site & make sure I am putting them together correctly.