OLFA 45mm Rotary Cutter Replacement Blades, 5 Blades (RB45-5) - Tungsten Steel Circular Rotary Fabric Cutter Blade for Quilting, Sewing, Crafts, and Scrapbooking Fits Most 45mm Rotary Cutters

EDIT 2/5/17: With 3 of the 5 blades in the pack unused, I finally gave up. During a recent visit to my local quilt shop, I purchased a pack of ten Olfa blades (not cheap at $59.95, but much better than throwing my money away on these worthless blades). As soon as I put one of the NEW blades on and cut some pinwheel squares I was trimming, I could tell the difference. The blades I purchased locally cut like a hot knife through butter. With these blades that I had purchased here on Amazon, I would have had to SAW through the seamed sections to get them trimmed. There is NO comparison. These are NOT Olfa blades. Or, at least, they are not the same Olfa blades that I get locally. There is something wrong with them - either they are use and re-sharpened (as others have implied) or they are a knock off of the real deal. Save yourself the money and the headache. I learned the hard way. Never again!! ----- ORIGINAL REVIEW: These may look just like Olfa blades (even though the entire package is printed in Japanese), and for the first few days that you use them they perform like Olfa blades, but thats where the similarity ends. Olfa blades that I purchase locally will last me a LONG time. They cut through multiple layers of fabric - often heavy fabric, too. Im on my second blade of this pack, and both of them are the same: they work for about a week, but then theyre dull, even having difficulty cutting through a single layer of Kona Cotton fabric. Annoying! Ive replaced a blade every 4 or 5 weeks. Unacceptable! Blades should last a whole lot longer than that. My locally purchased Olfa blade lasted nearly a year! I would not purchase these again, because clearly I was penny-wise and pound-foolish when purchasing these blades. Theyre not worth it. Pay the money and buy the real ones, unless you like re-cutting your fabric over and over and over . . .

Could not cut with the blades that came with my cutter. These blades made all the difference....cut like BUTTER.

Ive tried other brands blades but always come back to Olfa! They stay the sharpest longest, they cut through many layers of fabric at a time. (Ive cut 6!) which significantly cuts down on time when you are cutting itty bitty pieces for a quilt! Ive also cut paper with these blades so nice! Just make sure you close the safety on it as they are super sharp. Ill admit to a trip to the emergency room and some stitches when I neglected the safety on this... Also for the amazon.com price you cant beat even with a great sale at your local fabric/quilt/craft store!!!

You get what you pay for! The cheap blades are not worth wasting your money, the OLFA is the best and lasts the longest

Olfa blades are a quality item. Ive bought off brands and not been happy as they have chips or arent as sharp as the Olfas

am making a quilt and needed sharp blades. they came on time and was so happy how sharp they are, needed to cut multiple layers at one time, did with ease. One of the best deals I have ever gotten

I always buy Olfa blades from my local fabric store. Because of the coronavirus, I decided to buy these online. They are awful! I’ve tried four out of the pack, and they were worse than my used blades. I just tried the second pack that I bought. The blade from that pack that I used is fine. So I don’t know what was wrong with the first pack. I think they need better quality control.

Arrived on time in perfect condition.

I sew a lot, and I use a rotary cutter and mat to cut out my pattern pieces. Heres my review of these blades. Positives: Can cut through whatever fabric with ease (while it stays sharp) Provides clean cuts The sharpness of the blade lasts longer than you would think it would (several months) Negatives: None, really, except a caution to be careful with these blades, as they are extra sharp

I cut fabric strips for quilt tops. I started with Fiskars rotary cutters, but they wobbled and skipped on me. Olfas are more reliable, but like any razor-sharp tool the blades dull and need to be replaced--pretty frequently. Replacement rotary blades in big box fabric stores in my city have become outrageously expensive, and rarely can I find a 5pk. It was a no brainer for me