TAJIMA Utility Knives & Blades - 10-Pack (Heavy-Duty) 1" Razar Black Box Cutter Snap Blades with Premium Tempered Steel & Safety Blade Dispenser - CB65RBC

These 3/4-in blades are nice and flexible so they are easy to use for getting rid of caulking or trimming things back without just breaking the blade. Very sharp.

Wow. So awesome, inexpensive, amazing quality and packaging. Another reviewer mentioned how other blades that can't shave hair. I didn't believe it. I just assumed my razor blades were 'razor sharp.' Shaving arm hair is the minimum level of sharpness for my pocket knife and kitchen knives when I sharpen. So I tested the blades that came with my name brand 25mm utility knife. They wouldn't even roughly shave arm hair. Neither would my premium carbide blades for the more traditional style of utility knife. Neither would any premium blade I had. I was kind of shocked. Then I tried these blades. They were way beyond shaving sharp, and hair popping sharp. I haven't tried, but I would guess they could whittle a freestanding hair. Beyond that, they are coated black to protect against corrosion. They are also well oiled and come with a hard case for storage. Honestly, I bought them because they seemed like an inexpensive option, but I was shocked at the quality and attention to detail. Thanks for the awesome product. Never going back to the big brands.

Their great,and sharp!

EVERY DAY HOUSEHOLD USE. EXCELLENT PRODUCT. RECOMMEND HIGHLY

Bought them in 2023 and then again in 2025 (my mistake). use them a lot to cut up cardboard boxes. when I found out I had two boxes of these blades from 2 different years I did side by side test because 2023 blades seem dull out of box. well low an behold 2025 are just as dull. (Never had that problem before with blades I used). Needless to say, I'm going to find another brand. Did anyone else have this problem or is it me?

Great blades wery Sharp

As expected

Even though these blades may be okay for general use, I decided that they would most likely prove inadaquate for professional use mainly in part, because these black colored blades are made in China rather than it's more trusted counterpart the Japanese made version.