

🖤 Slice smarter, not harder — stay sharp with OLFA UltraSharp Black Blades!
The OLFA UltraSharp Black Snap-Off Heavy-Duty Blade (9070) features 10 carbon steel blades with 8 snap-off segments each, delivering 25% sharper cuts thanks to double-honed Japanese tool steel. Compatible with most 18mm utility knives, these blades excel in heavy-duty applications like construction and crafts, offering reliable, precise cutting performance trusted by professionals worldwide.





| ASIN | B00176HQ6W |
| Batteries Included? | No |
| Batteries Required? | No |
| Blade Material | Carbon Steel |
| Brand | OLFA |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,595) |
| Date First Available | September 23, 2005 |
| Global Trade Identification Number | 00091511600360 |
| Handle Material | Alloy Steel, Rubber |
| Included Components | Unit^Instruction Guide |
| Is Discontinued By Manufacturer | No |
| Item Length | 18 Millimeters |
| Item Package Quantity | 1 |
| Item Weight | 2.65 ounces |
| Item model number | 9070 |
| Manufacturer | OLFA |
| Material | Carbon Steel |
| Part Number | 9070 |
| Size | 5"L x 1"W x 0.1"H |
| Style | Retractable |
| UPC | 787721629733 091511500769 091511600360 |
E**R
"Wonderful" Blades . . . That Wear Quickly
I love these black blades.---But they do have limited durability. I also like the Olfa Mountable Blade disposal product---for safety in disposing of used blades. (Thanks to the limited lifespan of these blades, I got to try it out quickly.)
J**E
They were sharp
They are sharp
D**E
It cuts through all thicknesses of cardboard boxes like butter. It makes it safer and easier for ...
The only blade I use in my OLFA 1072198 LA-X 18mm Fiberglass Rubber Grip Heavy-Duty Utility Knife. I use it primarily for breaking down cardboard boxes. It cuts through all thicknesses of cardboard boxes like butter. It makes it safer and easier for me. No more yanking or repeated hacking like I did with my previous cheap boxcutters. One smooth stroke gets through any box. I've also used it for cutting foam core and styrofoam and all sort of tape and ropes. One blade will last a very long time for me. Changing to a new blade is also safer for me. I just hold it with a plier and push down to snap off the old blade and a new blade is ready to go. No lifting and replacing a razor sharp blade in the cutter. Bottom line: A superior quality product and a value in every department - performance, safety & cost.
S**Y
Worth the extra cost for excellent quality
OLFA products aren't cheap, but they are worth the investment when you don't want to compromise. I was fed up with the cheap, thin, replacement blades from other suppliers, and I don't regret buying the better quality, which also makes for safer use. Having a sharp blade on a cutter can be dangerous if they snap off during use.
G**G
Good quality
Good quality, cuts well, holds edge for a long time.
S**S
Excellent Quality
This company manufacturers high qualiry products. The refills are excellent. Definitely a case of "you get what you pay for".
J**J
Really sharp, last well
Great blades for a great knife (Olfa 18mm L-5), definitely superior to what the big box hardware stores carry.
J**R
Holds an edge
does the job, and seems to hold an edge longer than the bright steel blades.
M**S
Have not used any as yet but look OK to me thank you.
S**U
Sembrano molte buone queste lame
A**.
Las olfa son las mejores. Especial para hacer maquetas, cortar cartones o plásticos.
M**G
The best blades for the best knife. Long lasting and very sharp.
H**R
Que puedo decir de la calidad de esta marca: Excelentes! 100% confiables
Trustpilot
2 months ago
1 month ago