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🔪 Cut sharper, craft smarter — don’t let dull blades slow your flow!
OLFA’s 28mm Rotary Replacement Blades (RB28-10) are precision-engineered tungsten steel blades designed for detailed cutting in fabric, paper, leather, and more. This pack of 10 ultra-sharp blades offers long-lasting edge retention and is compatible with most 28mm rotary cutters, delivering professional-grade performance trusted since 1979.






| Blade Material | Tungsten |
| Brand | OLFA |
| Color | Silver |
| Item Length | 28 millimeters |
| Item Weight | 18.14 g |
| Material | Tungsten |
| Material Type | Tungsten |
R**A
Great for cutting bags
Love this rotary cutters
J**R
Makes the boss happy
Makes the boss happy
G**5
Great value
Thess are authentic Olfa blades even though they are packaged in non-retail packaging. These blades are an outstanding value. I will look to purchase larger blades from this seller.
K**R
OLFA 28mm Rotary Cutter Replacement Blades
I needed extra cutting blades. The product was as described and arrived on time. I will purchase from this seller again.
A**R
A great size blade for home sewing projects
I’ve been using the same blade for 7+ years and convinced myself a new one wouldn’t make a big difference. I was so wrong. I love the Olfa rotary cutter for pattern making and sewing. These blades are sharp, easy to refill, and reliable.
M**X
Yes, they are genuine.
The idiots claiming they are not genuine because of "Chinese" writing are clueless, they are real Olfa, intended for the Japanese market which has even higher standards than ours. The reason for the 4 stars, not 5 is that these are the second best, blue packaging, not the gold. And for the fact that the packaging is deliberately omitted in the description or pictures. We are using these on an industrial cutter, cutting heavy vinyl textile and occasionally leather, a blade lasts us about a day of cutting. We really think it could do better, but this is the best we have found so far
K**Y
Great Deal!
Such a great deal. Nice to get genuine Olfa replacement blades at a discounted price. I have tried a few knockoffs but nothing beats the quality of the real deal- sharper and longer lasting. Glad I purchased!
B**R
Olfa rotary blades
Can't beat OLFA for quality blades. They stay sharp very long. I'm a quilter and use the blade all the time cutting over and over again. They go for a long time before you have to replace the blade. I will definitely buy these again.
C**G
Always buy blades of the same brand as your cutter!
Named brand blades are designed specifically to fit the matching brand rotary cutters. These were much more expensive than generic but well worth the price - the last generic blade I tried the hole was too small for the cutter. When they arrived I thought there had been a mistake because the plastic container was so small. It was the same size as the container for a single blade but it was original packaging and all ten were in there. Happy with the purchase.
A**E
Made in Japan
contrairement aux lames Prym celles-ci sont fabriquées au Japon. Excellente qualité de coupe
C**N
Las mejores cuchillas del mundo !!!!!!
Son las mejores cuchillas con las que hemos trabajado. Precisas en el corte y muy duraderas. Nunca nos ha roto una cuchilla y las empleamos en un corte automático Gerber.
P**R
perfetto
Spedizione nei tempi e modi indicati. Le lame sono le perfette per la rotella Olfa
W**E
great blades
these are so wonderful its cheaper to purchase the 10 pack as these are really a great blade for cutting
Trustpilot
3 days ago
1 week ago