Review on Kutir 20 Pack Utility Knife Blades by Orlando Mohr

The blade broke in half the first time I used it. Bought a pack of 20 SK2s to test at work in a paper mill. That's why I'm looking for a sharp, durable blade. I usually flip the blade fresh side once an hour. Only 3 of the first 10 blades I've used have achieved this. They break in half when I cut 1/2 inch sheets of paper. I think the ones that aren't broken hold the blade well. Very badly smeared with engine oil upon arrival. By the way, I tried blades with gold tips from Lennox, as well as the Fiskars brand. The very expensive Lennox blades bent and cut through the paper every time. The Fiskars had the thickest blades and have held up best so far.