CPM 15v Manix 2

[Wandering_About]

Just for fun, the date code on the blade tang of mine is 7-22 B, which matches the box code (GV).

[msum]

Are Wharncliffe profiles good for box opening? I quite like points, but I guess Wharncliffes do have a point/corner…

Definitely better for utility cutting. Probably a smidge worse at cutting up apples.

Thanks!

[electro-static]

Just for fun, the date code on the blade tang of mine is 7-22, which matches the box code (GV).

mine too!

[legOFwhat?]

Just for fun, the date code on the blade tang of mine is 7-22, which matches the box code (GV).

mine too!

8-22 B for me

[Mrj]

I got 7-22 C

[electro-static]

7-22-A here

[troutinCO]

7-22 C

[GeezyG]

It would make it a little easier to score one if folks wouldn't post their sad stories on the 15v alert thread. Cant count how many times I ran to my notification just to find out somebody's feelings. This discussion thread here is for all that extra stuff. But I digress.

[T5BRICK]

Just got mine in the mail this morning. Pretty excited because it’s my first Manix (definitely not my first Spyderco). Blade says 7-22 A.

[wrdwrght]

7-22C.

Nice to see the Triple-B logo earning an appearance here.

[GeezyG]

When it came to sharpening, the two guys I would turn to for advice from their content or from them directly on IG was Michael Christy & Triple-B. Its kool to see how much he's grown as a knife maker since his early videos. It's always nice to see good things happen to good people. Just got a notification my 15V is delivered to my PO Box. I am finally gonna be able to nerd out or complain. I'm pretty sure I'll get to be a nerd. I haven't heard any QC issues with this knife yet. Though I'm sure there's always gonna be some unhappy folks. Thank u BBB. The "knife community" gets a "little" piece of your hard work & dedication with this Manix 2, 15V (Da Bear).

[BIGSTRETCH]

8-22 A

What is the “A”?

Thx

[PromoFLB]

7-22 B

Really would like to know the meaning of the letter also.

[NCJohn62]

8-22 C for me. Very happy that I was able to snag one!

[electro-static]

8-22 A

What is the “A”?

Thx

It might be a lot number

[Deadboxhero]

More user feedback and photos from other CPM 15V Manix 2 owners on the Facebook group.

[kennbr34]

Got mine in the mail yesterday. Didn't get a chance to mess with it much until today due to birthday celebrations.

I'm really surprised how sharp the factory edge is. I don't have a goniometer but after a few caliper measurements and checking against my angle guides, it seems the specs are...

Primary Grind Angle: 2.6 degrees per side (wow, never seen a primary grind that acute)
Edge Grind Angle: 16.6 degrees per side
Thickness Behind Edge: .024"

I usually shoot for 15 dps so at least this will reprofile quickly if/when I do. I think the only real benefit of doing so would be in case the factory grind fubbed the heat-treat at the very edge, but I think I read somewhere that Sal said they use cooled grinders? If so I'll probably just keep the factory grind for now; I think it's probably already within the tolerances my hand-sharpening would produce anyway.

Edit: I got bored and decided to just re-profile it anyway.

[Rymanz]

I wonder if the acute factory angle was based on input/direction from Shawn? From pictures I've seen, these definitely have a noticeably larger edge bevel versus other Manix I've seen.

[Deadboxhero]

The CPM 15V Manix 2 has the same geometry as the other Manix 2 knives made in 2022 and before.

~17dps

Should be noted that it is impossible to make the perfect angle that would be a solution to ALL USERS.

If a person needs more durability? Go 25dps
If a person wants better cutting ability? Go 15dps.

Cutting ability and durability are inverse relationships.

An end users preferences and uses will be the biggest factor for whats wanted or needed.

I wonder if the acute factory angle was based on input/direction from Shawn? From pictures I've seen, these definitely have a noticeably larger edge bevel versus other Manix I've seen.

[Phil Wilson]

15V

I was fortunate to get a CPM 15V Maxus 2 to work with and over the next few months will use it in a daily way, working in the shop and carrying with me. I do have some observations I can make based on this initial use. This knife tested 65 Rockwell and an average of 0.024 behind the edge.

The blade finish is incredible. Even more impressive for a steel grade with such high carbide volume and hardness.
Type to enter text
The sharpness out of the box was also very good. I made an initial single cut on 3/4 manila rope and it sliced cleanly with good aggression. Downward pressure to enable this first cut was 20 to 25 pounds. It sliced printer paper like zip with out any hang up. I have tested many knives that had no bite and would slide on rope with the initial sharpening so I feel this is excellent out of the box sharpening.

The knife feels solid in the hand, no discernible play either in the lock or pivot. The handle shape provides a very secure grip and the scales are non slip.

I did some more extensive cutting tests on 3/4 manila rope using my standard that I use on my knives. Manila rope makes an ideal cutting medium since it simulates animal hair like found on deer, elk and wild pigs. Rope does change over time depending on age and ambient humidity. To compensate for this it is necessary to to have a datum knife to compare to the blade being tested. In this case I used a South Fork in K390 that had 0.015 thickness behind the edge and full flat grind geometry. The hardness is RC 64 tested on my Wilson tester and standard test block.

I used the as delivered edge and found it to start to slide at about half of that of the datum knife. Resharpening the Manix 2 on a vitrified diamond plate with 320 grit gave a nice aggressive edge.This edge now provided performance close to the datum knife. This is is good performance considering the thicker behind the edge of the Maxus 2. When doing my testing I am always amazed on how much difference the sharpening and behind the edge thickness makes. I have seen sharpening media and grit size to make as much as 50% difference on the same blade cutting the same test media. I estimate that with comparable edge thickness the Maxus 2 CPM 15V would end up at 15% better edge holding than the datum knife. This compares pretty close with the work that doctor Larrin (knifesteelnerds.com) has done in his CATRA testing on comparing blade steels. Shawn (BBB) working with Spyderco has done a lot of work and research to optimize the heat treat and it appears that is spot on. We now have another high carbide, high hardness blade steel that will find a niche in that category and has a lot of potential to have the balance to be a winner.