I'm hopeless.
I look at these other fancy blades, and they're nice, make no mistake.
But all I need are these. They render everything else superfluous.
44032, The Little Guy. Blade 1-5/8" OAL. Just cute as a bug's ear. $26.96. I oughta buy at least three:
44033, The Regular Guy. Plain vanilla. Shown Actual Size. The one that started the trend. Blade 2" OAL. $30.08. Used the most, and I lost one once. My Always Knife. Better get three of these too:
44034, The Big Dog. The Belt Special. Blade OAL 2-5/8". Got one used/pristine for $30. NIB price is $40.82. Fits in your hand like a Buck 110. Costs more and I've got one, so I only need two. The image is off scale, but you can see the difference in the belly of the blade.
The names I made up. Klein Tools lacks anything more than an evocative number too differentiate the models.
These are amazingly inexpensive. Buy a few. They'll horribly embarass the rest of your knives with their Irresistable Unstoppability. I have found nothing better at the price, and they compare equally against any other blade, and better than many.
The secret is officialy out. BTW, I don't work for Klein Tools or anything. I just like the knives, and I think they represent a tremendous value for their cost. How could you go wrong with that kind of qualification? In over twelve years of continuous duty, I've replaced the one that I lost, and the blade on the current one has shaped Aluminum, Acrylic plastic, Lexan, every kind of hardwood you can imagine, dozens of galvanized electrical boxes, a bunch of cast-iron bolt holes, and about fifty gazillion pencil points without so much as breaking a sweat. Add to that numerous and sundry boxes and packages.
It's got holster wear from riding around in my pocket. No rust. Sharpen it when it turns up dull, which isn't very often. The rosewood is so dark it's almost black.
I have no clue as to what steel Klein's using to make these knives.
If anyone knows a real answer, I'd sure like to know. It's amazing stuff.
Attached Jpeg shows knives in relation to each other, and exact size.