TalkBlade.Info Knife Forums

"Molecular metal" won't work. It's an epoxy product, and too soft.
You could hard solder the blade notch up.
Bill

I would hammer the backspring out longer. If this does not completely stop the movement, you could forge the lever pin wider, and/or forge the blade hole closed.
Bill

The Massaro 7" is a very fine knife, and one of my favorites.
Bill

I was able to do a little research on this subject. 440B and 420 heat treat like 440C. You should be able to heat the blade to about 1900 degrees and hold it there for a few minutes. Then air cool. Reharden the same way, with an oil quench. I would temper in a toaster oven at about 230-240 degrees f...

I really can't help here, as I have never tried retempering 440 B.
You could do a search on heat treating. 440B may be an air-hardening steel, so normal heat treating procedures won't work if it is.
Please let us know what you come up with! This will be an interesting thread.
Sorry,
Bill

Push
Ha!
Peening with a punch or extra hammer head is a viable option. It takes three hands, though.
Bill

Avique
If you can close the gap with your fingers, then peening is the answer. Just go slow, and use the smallest hammer you can find.
I don't care what Pushbutton says, if you pee on your knife, it will rust.
Bill

Pushbutton
Yes, but we are talking about PEENING, not PEEING!
Bill

The Percival is a very nice French copy of a Benchmade mod. 2500.
I have one, and like it very much. Very lightweight.
Bill

It means you either have a knife with very good steel, or a knife made in China!
Bill

Jim My guess would be that the "root beer" scaled knives came about after 1982, when Klaas assumed the "Bonsa" assets. This same style scale was available in black on the later Bonsas. I believe the KK levers were made in the 1950s. They have always been fine knives. I doubt they were ever Rockwell ...

slbd
Buy some books on knife collecting. I can recommend "Bernard Levine's Guide to knives and their values."
Patterns are explained in guides like these.
Bill DeShivs

I should have said "carbon steel" blades. I forgot about stainless, as I seldom use it!
Thanks.
Bill

TR Beautiful, precise work. This may help on the spring- you can make a one-piece by sawing out the same profile as the 2 part in the closed position, then just bend the leaf into position and heat treat. For pocketknife blades & springs, a satisfactory forge can be assembled with 4 fire bricks and ...

The knife looks to be second generation, but it's hard to tell.
I don't know the seller. As far as I'm concerned, if you can get one for less than $100, you still get a great deal!
Bill