Tag Archives: CPM20CV

QSP PENGUIN PLUS – Titanium and 20CV blade. Revenge of the Emperor penguin ?

My first Penguin’s encounter occurred thanks to Massdrop which offered the QSP Penguin for 26 dollars.
This was a bargain for a lovely well made lil’ folder (review linked)

As I was looking for a big not threatening folder, I was studying different wharncliff designs or sheepfoot blades for that matter.
Ending my quest with that little Spyderco wonder in the previous review: the Dragonfly.
But back to the QSP birdy pictured here with a Spydiechef:

But my need for a more longer blade (especially in the kitchen) was still on and then I have found that QS130XL-B – QSP Penguin Plus Titane.
Same specs as my beloved D2 Blue Denim Micarta QSP but everything is different 😉 because this is the Penguin PLUS with:
A longer blade. Blade length 8,6 cm.Blade thickness 3,5 mm.
A flipper.
A titanium handle
A 20CV DLC longer blade.
Length closed 11,4 cm.
Ceramic ball bearing..
Lockbar insert.
Titanium clip.

Weight 127g.

The price was 7 times the price of my first Penguin on thebestknives.eu in Vesoul, France. Great bargain and great service.

And here it is:

It is razor sharp right out of the box. Well balanced and all the contour are chanfered. It is a very nice tool knife.
There is a serious heft in this blade.
The action is not stellar because of the detent on the coating but the knife fires with ease thanks to a great detent and an heavy blade.
The integral lock is a little on the sticky side but nothing dramatic.
The whole package is a flat easy to carry medium folder.



But that thumb stumb as to go.
Why ?
Because there is no choil and if you miss your thumstud firing (instead of using the flipper) chance are high to get your thumb encountering the razor edge of the blade.
So it has to go.

It was easily done with two torxes.
Now I got a little hole but it suits me.
I have done the same treatment 23 years ago with Benchmade BM710 this kind of treatment assures you to get a little longer working blade eventually as the studs loves to get in the way.

The tip looks like a sailor or electrician knife and seems strong enough for many knife tasks. In the wharncliffe blade design the point is in contact with cutting board or the plate and gthis one is pointy enough to draw my blood while writing that review…
Well well now it is time for the real testing which will bring another review soon enough.
This is a beautiful knife with a strong straight long blade which disappears in the pocket with its deep carry wired clip. That titanium clip retention is very good BTW.
The handle is made of gorgeous bronze titanium which gives a nice patina look to it and eventually a very vintage toolish low profile look. This is destined to be a hard used folder used in middle of brass and copper. Its flipper is even providing a security guard preventing the hand to slip forward. Instinctively they are many grips and many usages to be considered for a solid folder.
And in terms of edge retention, CPM-20CV is one of the best stainless steel to be found nowadays linked here. Not the strongest (like CPM-3V) but certainly one of the best balanced.

So this is really a nice knife to EDC to put to its paces.

Pictured here with a Ed Schempp Bowie.

And a Swayback.

And for the next step a de shouldering of the edge is mandatory.
Diamonds work great.

Zero Tolerance 0562CF — Bright and Beautiful.

wp-image-1933490811 My first Zero Tolerance was the 0770CF and I was really amazed by the quality of manufacturing provided by that Peter Kershaw’s brand. But I wanted something hardchore, heavier at the opposite of my C36 Military which is light and fast like the Hussein Bolt of knives. I have given a chance to the Megalodon, Real Steel flagship. But a poorly designed clip ruined my experience. So I have asked some advice on the Zero Tolerance Facebook group and I have invested in a ZT0562CF ! RIL lock, deep carry dark clip, no hot spot on the handle. The attention to detail is amazing and the ooze of quality. Designed by Rick Hinderer it has won Best American Made Knife at the Blade Show some years ago.

It’s a true flipper, the “thumb” studs cannot be used to open the blade as the detent is too strong. They are just here to be part of the lock. Their also a stop pin but it’s only used to stop the blade once closed not opened.
The first edition of the Real Steel Megalodon used to have the same system and the handle kept that “S” on the front which form two horns which can used as deterrent in case of self defense situation.wp-image-1687282944 As you can notice, it’s easy to pinch your finger between the stud and the handle when opening the blade. So really, it’s a true flipper made to be open in that way. And here the experience is wonderful. The smooth KVT ball-bearing opening system. A washer with caged ball bearings surrounds the pivot and makes opening the knife nearly frictionless. Only the detent ball brings some minor friction actually. But it’s really minimal. The knife opens every time. The balance is perfect, just behind the pivot. So the blade is alive in my hand. wp-image-133474584 What you noticed first when handling the ZT0562CF is her smooth Carbon Fibers scale and butter like action. It’s 156 grams heavy compared to my Military 120 grams (titanium clip)… You fee the heft. And that’s exactly what I wanted. The corners are chanfered and there is no hot spots even the clip is not felt in hammer grip. I love the details on the blade: the stonewashed flat side and the satine grind. wp-image-748540201 It offers alsmot the same working edge. It carries tip up and it’s not as fast to draw as the Millie even with its titanium deep carry clip. The blade is made of CPM 20CV but it was first offered in M390 and CTS204P like on the Spyderco Southard. “CPM-20CV has a high volume of vanadium carbides and a high amount of chromium. You get exceptional edge retention and outstanding corrosion resistance.” said Zero Tolerance site. In fact CPM-20CV is the twin brother of M390 and CTS204P. Different manufacturer and same super steel with at 1.9% carbon, 20.0% chromium, 1.0% molybdenum, 4.0% vanadium, 0.3% silicon, 0.6% tungsten, and 0.3% manganese. The heat treating and the grind will make the difference. But as a Powder Metallurgy (PM) tool steel, you should get a combination of impressive wear resistance and edge retention plus the added benefit of being highly corrosion resistant due to its high level of chromium. wp-image-36373330 You can notice the different surface works on that picture. But as far as the blade was beautiful I felt the edge was thick compared to what I’m used too.

And unfortunatly the ZT did not pass my Plastic Bottle Butt’s test ! It was blocked and even a saw motion did not change anything. The blade was stuck before to reach the thicker part. So I had to summon: the diamonds, the sandpaper and the ceramics and put on thinner edge on that beast of a knife.

wp-image-170153826 I have started with the diamonds of the Fallkniven DC4. It was not easy as I felt the thumb studs was going in the way. eventually I was able to de-shoulder the edge and even to scratch the blade. That “Hinderer flat-ground “slicer” grind” that should provide both slicing efficiency and a tough point was not easy to get at first. wp-image-908967677 Against the scratches I has used a P1000 Sandpaper and they were erased. No big deal. They have disappeared just but doing an 90° motion. I have treated all the blade for good measure. wp-image-737758906 Then came the work on the brown stone, the brown ceramic and the white ceramic. My edge was slowly going convexed. My favorite one for stropping. Soon CPM-20CV was back to razor. I was amazed by the way the steel react under the ceramic. It was much easier than I thought. I had the same excellent experience with my Southard.

Then came the leather work with some polish white paste and I was able to achieve a nice mirror finish. At all it took me one hour for thinning and polishing the edge to my own taste. wp-image-1937876634 wp-image-1775073832 True convex razor as the hairs were jumping on the blade.

It was time to test it on the Coke bottle butt again:

And this time it was a success ! The blade pushcuts steadily through the thick transparent plastic. And then on tomatoes skin which can be tricky with a polish edge.

Some mozarella slices… with its open construction it was a breeze to clean under the tap.

And eventually all the ingredients wre turned into a salad for lunch. Conclusion: the ZT0562CF is now in my pocket to be tested on a longer run but it already got such great qualities to make it a keeper: unearthy smooth operation, great ergos, best high tech materials and top notch steel. The thumb stud does not get in the way while cutting and the point is strong enough to feel confident about its resilience. The innovative deep carry clip makes it easy to disappear in the pocket. It’s the perfect adequation between hard working and gentleman folder. Now you can also check the Falcon here which is a true jewel in that flipping matter.

wp-image-1719208375

Error
This video doesn’t exist

wp-image-1909485844