I've had this knife (Meyerco Camp USA Blackie Collins 440 steel) for a while, and I've tried sharpening it with wet stones, ceramics, and a kitchen knife sharpener, with no luck. I've considered that maybe I'm just doing something wrong, but I have/had other knives with 440 blades and I've sharpened them easily. I know there are different types of 440, but should that make that much of a difference? It doesn't say what type it is, just that it is. I also can't find any information on the knife, since I don't have a model name or number for it.
There could be several reasons for this. The first; the 440 stainless is really 440A which is the lowest quality of the 440's. That along with improper heat treating make large carbides that make getting a razor edge nearly impossible. The second; defective geometry. The angle of the edge is too steep for a razor edge to exist. This is usually the case as the cheaper steels and defective geometry usually go together as the cheap steel cant be ground thin enough because it is too weak. As for hardness of 440, it's a myth. 440C, the highest quality, fully hardened is only 59 rockwell but at this hardness it is brittle so they usually draw it back to 57r. To put it in perspective my knives usually run 60r and take an edge very easily. The difference is grain structure, a fine grain=greater edge strength and sharpness potential.
MEYERCO BLACKIE COLLINS STRUT N' CUT LOCKBACK KNIFE MINT NR!!!!!!!!, Meyerco Karambit Blackie Collins Fixed Blade Neck Knife w/ Sheath, Meyerco Necklance Blackie Collins River Rescue Blunt Tip Serrated Neck Knife, MEYERCO Blackie Collins 420 J2 Tool Steel KARAMBIT Neck & Boot Clip Knife Knives, MEYERCO Blackie Collins 420 J2 Tool Steel KARAMBIT Neck & Boot Clip Knife Knives, MEYERCO Blackie Collins 420 J2 Tool Steel KARAMBIT Neck & Boot Clip Knife Knives, Meyerco/Blackie Collins Serrated & Folding knife Strut n Cut Brand New , Meyerco Blackie Collins Razor Knife, Meyerco Hunter Fixed Blade Neck Knife Necklance Blackie Collins MANKU Fine Edge , Meyerco Blackie Collins Neck Knife MANKR Black Serrated Blade River Boating Tool, MEYERCO BLACKIE COLLINS RESCUEONE KNIFE, Meyerco Necklance Double Edged Neck Knife NEW Blackie Collins Knife with Sheath, Meyerco Rescue One Linerlock designed by Blackie Collins, Blackie Collins designed Meyerco hi tech locking and release vintage rare AU8SA, Meyerco A-OK Blackie Collins folding knife free paracord bracelet, Meyerco River Rescue Necklance Boating Survival Neck Knife Blackie Collins Oth, Meyerco Lockback Knife AUS-8A RARE Strut N Cut Lockback by Blackie Collins NR, Limited Meyerco Blackie Collins Necklance Double Edge Neck Knife Compact Dagger, Meyerco Blackie Collins Double Edge Neck Knife, Meyerco A-OK Thin Blackie Collins Small Pocket Knife Assisted Opening MC2853, New Meyerco Guppy Neck Knife Sheath Blackie Collins MC4663, MEYERCO BLACKIE COLLINS FIXED BLADE HUNTING KNIFE MICARTA HANDLE, MEYERCO Blackie Collins design fixed blade tactical knife with sheath mint con , Meyerco Karambit Blackie Collins Fixed Blade Neck Knife w/ Sheath, MEYERCO BLACKIE COLLINS A-OK ASSIST RAZOR SHARP BIKER KNIFE OUTLAW 1%ER MC , Meyerco Guppy Neck Knife Fixed Blade with Sheath Blackie Collins Design New!, MEYERCO BLACKIE COLLINS PRO GRIP HUNTER KNIFE NEW, MEYERCO BLACKIE COLLINS FIXED BLADE HUNTING KNIFE MICARTA HANDLE, New Meyerco A/O Thin A-OK Pocket Knife Blackie Collins Assisted Open MC2849, Meyerco small A-OK Blackie Collins assisted knife A/O G10 handles,
