OLFA 25mm Extra Heavy-Duty Ultra-Sharp Black Snap Off Replacement Blades, 5 Blades (35 segments) HBB-5B - Snap-Off Utility Knife Replacement Blades, Fits most 25mm Utility Knives

OLFA blades are the best of the best, noticeably sharper than the competition. While I don't usually love snap off blades, the extra meat on a 25mm blade makes them much less likely to break off inadvertently. Highly recommend pairing these with an OLFA handle as well, since the fit and finish is so much better, but these will fit any 25mm handle.

Very sharp. Seems sharper than the blade that came with the knife. Happy with the purchase.

Very sharp, excellent blades a definitely must buy if you have an olfa knife that takes 25 mm size of blade.

Got turned on to these by AvE(if you know, you know). Quality is outstanding, but be advised they are high-carbon steel and will rust if you're carrying them in your pocket all the time and you don't apply some oil to the blade every so often.

Olfa makes quality blades that are super heavy duty, razor sharp and really cost just a little more than the competition. I but a whole pack and I am still on my first blade, I have yet to snap off a single blade. This knife gets used almost daily multiple times a day for opening boxes (primary use) to striping wires to anything else you need a blade for in the shop. It performs extremely well.

As described!

They hold the edge much longer and are more stiff that the usual blades. Very useful!

Ripping sharp and corrode far slower than other options