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

(735 Reviews)

Price
$24.49

Quantity
(10000 available )

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100 Ratings
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Reviews
  • The Mermaid

    09-06-2025

    So sharp! Easy to change out and replace in my 45mm rotary cutter.The case is nice to have to store and dispose of the used blades. Cuts through several layers of fabric like a dream!

  • Texas GC

    > 3 day

    They have the OLFA name, are sharp and are brand new. Before ordering I had read reviews that commented on the blades being used, and not reflecting the OLFA name. I did not have any of those issues. The only issue I had was that Amazon didnt pack them well so they fell out of their container .

  • Briggie

    > 3 day

    be very careful with these, super sharp

  • Girl of the Far North

    Greater than one week

    Olfa blades are the best on the market. They are made of high quality steel, hold an edge very well, and cut sublimely. I have used off-brands thinking to get a bargain, but theyre not a bargain. These blades, while they are made for Olfa cutters (also the best on the market) will also fit on other brands of cutters (except for Martelli rotary cutters, which take Martelli blades only). They last a long time when used on a good quality cutting mat and when you dont hit things like pins when youre cutting. They can also be sharpened successfully a few times, which helps make them even more economical. I highly recommend these blades

  • Lisbon

    > 3 day

    Olfa products are always a safe buy.

  • Deborah Bainbridge

    > 3 day

    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.

  • Andrea Turner

    > 3 day

    Same price as store but they’ve been out for weeks.

  • Texas V

    Greater than one week

    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 . . .

  • Pamela Moore

    > 3 day

    Ive purchased cheaper blades from Amazon-- blades that bent or dulled after the first few minutes of cutting. Lets be honest, people buy a rotary cutter when theyre serious about cutting fabric. OLFA blades can go the distance. They dont bend or dull after the first pass. Ive had success using the same blade on multiple projects. Worth it.

  • Rosie rose

    > 3 day

    from semi transparent packaging - the hole looks just to be round but when you open you see it is the right shape as shown think I could have used round hole ones - but this shape was on my board from someone using on an old dark gray Fiskar board with an orange guard and orange grid - seems to work fine

RB45RB45

OLFA 45mm Rotary Cutter Replacement Blades

  • RAZOR SHARP 45mm ROTARY BLADES - These 45mm blades are made from high-quality tungsten tool steel for unparalleled sharpness and superior edge retention. The long lasting precision of these blades allows you to work longer uninterrupted.
  • COMPATIBLE WITH 45mm ROTARY CUTTERS - Our RB45-5 45mm Rotary Blades are compatible with most 45mm rotary cutters. However, these circular blades perform best when equipped with an OLFA 45mm Rotary Cutter.
  • HEAVY DUTY CUTTING - These blades provide detailed and precise cutting of a wide variety of materials including fleece, felt, wool, cotton, leather, suede, foam, vinyl, and more. They cut up to 8 layers of cotton fabric in a single pass.

RAZOR SHARP 45MM ROTARY BLADE

RB45RB45

RB28-5RB28-5

RTY-2/DXRTY-2/DX

RTY-2/DXRTY-2/DX

Razor Sharp Blade

Made of high-quality tungsten tool steel, the RB45 replacement blades provide unparalleled sharpness and superior edge retention.

Quantity

The RB45 replacement blades are available in quantities of 1 Blade (RB45-1), 2 Blades (RB45-2), 5 Blades (RB45-5), 10 Blades (RB45-10), and 500 Blades (RB45-500).

Compatibility

OLFA"s RB45 replacement blades are compatible with most 45mm rotary cutters but perform best when equipped with an OLFA 45mm Rotary Cutter.

Heavy Duty Cutting

Designed for heavy duty cutting the replacement rotary blades provide detailed and precise cutting for a wide variety of materials including fleece, felt, wool, cotton, leather and more.

RB28 RB45 CHB WAB45 RB60H
RB28 RB45 CHB WAB45 RB60H
Size 28mm 45mm 60mm 45mm 60mm
Straight Blade

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AK1/5BAK1/5B

OLFA Standard Art Knife

Standard duty art knife perfect for paper, vinyl, rubber, models, cardstock, foam, and more. Pen-like hobby knife has a textured, contoured handle that delivers comfort and stability.

RM-SGRM-SG

OLFA Self-Healing Rotary Mat

OLFA offers a 18"x24" self-healing cutting mat perfect for small and medium size projects. Our rotary mat has a self-healing finish that reseals surface cuts for a continually smooth cutting surface. Pairing your OLFA Rotary Cutting Mat with OLFA Rotary Cutters will provide optimal results.

Professional and Craft Retail Product Lines

OLFA Professional and Craft Retail BannerOLFA Professional and Craft Retail Banner

OLFA offers a wide variety of tools including Snap-off cutter, Rotary knives, Safety knives, Utility cutters, Art knives, Scissors, Compass cutters, Scrapers, Blade disposal cases, Rulers, Cutting mats and Blades. Creating with the right tools is pure pleasure. They allow to obtain a precise cut, affect the quality of our work and the final effect of the work.

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