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Hi all!
We're starting with hard use testing of Emerson CQC-7
and Zero Tolerance 350
This series of testing will finally determine
Which one of these knives is better as a "folding pry-bar"
Zero Tolerance 350 has some advantage
after initial testing in common cutting tasks
But this advantage will disappear
if it'll suddenly fail these most important tests
Because after all, these knives are "folding pry-bars"
neither than good , light , comfortable cutters
Let's get started!
We're starting with testing of cutting edge
Begin with cutting of cable
You can see the marks on the coating right away
I don't know if it's damaged but there are marks
Now Emerson
Both knives did very well no chips no nothing
But it's just a "warming-up"
Moving to a more serious taks
Today we have a can of pineapples
We will open one side by Zero Tolerance
and another side by Emerson
Go
Just drain the juice
I remind that there is an S30V steel here
This fact of itself is a serious statement
because powder steel is a powder steel
crumble out and chipping is possible
And second side by Emerson
The feeling is that this left-side chisel grind is
made for this kind of work
It can even be seen how clean is an Emerson's cut
and how raggedly it was cut by Zero Tolerance
Battery has died at inappropriate moment
I was about to examine the cutting edges
And I can surely say to you that cutting edge
Zero Tolerance feels quite bad.
I don't know if it'll be seen on video without macro...
i.e. there is no very big chips but it was damaged in an ugly way
And Emerson feels fine
Well, I made some conclusions after my first experience of hard use testing
and I decided to add one more test of cutting edge.
This test will be a shaving of this aluminum plate.
This is a industrial 2mm aluminum - "saucepan" aluminum.
And I'll try to shave it carefully.
Carefully does not work.
And we'll shave as it is coming to hand.
I don't know how it can be seen:
Zero Tolerance takes off the shavings very good,
at that without any additional damage to cutting edge
i.e. the damage that is already there is stays but it doesn't get worse.
That's how it shaved.
Now Emerson.
Emerson is coping with this task very well too.
With correction on the fact that this left-side chisel
tries to pop out and doesn't diggind deep into the material.
But nevertheless it shaved this aluminum
and nothing major happened to this cutting edge.
No chippings or deep crumples.
Very Well!
Now moving to a next stage.
It'll be a stage of testing the locks.
This is very interesting.
By the way, the knives didn't got any play.
Zero Tolerance had some micro blade-play.
By the way, pay attention to blade coating on Zero Tolerance
after aluminum - it's got painted from it.
In general the Zero Tolerance had some micro blade-play
by a reason of it being assited.
And Emerson is "dead"-tight.
Let's go! Beginning with Zero Tolerance.
OK
Holds.
Holds. Five good strikes and it standed all of them.
Now Emerson with it's thinner titanium liner.
Like this...
Emerson, which is in theory must be sticking, has folded.
I think it's folded and opened.
Like this.
I think everything is understood here.
Lock is positioned OK.
On the first sight everything is looking great but how it folds...
I totally didn't expect this...
Well, moving on.
Moving to testing of tip strength.
We'll be penetrating a hole in a wood block.
We have 10 strikes.
Now 10 strikes with Emerson.
Not bad on both knives but Emerson seems to enter the wood more aggressively and deeply.
I think it has to be noticeable how heavy are the side loads on a knives.
I started to punch in different spots...
That's it. To the bone.
Fast this time.
My hand had slided off on a couple of times on the Emerson. Almost on the blade.
The knife isn't s long and it didn't went further.
Handle of Zero Tolerance also has it's drawbacks
I'll not going to mention it now but only about Emerson.
I confirm what people say that if not protect yourself with a thumb,
the hand might slip to a cutting edge. I confirm that.
After that we have a next test of tip strength - tin-plate 0.8mm
5 strikes each.
Zero tolerance - the very-very tip is gone. It's literally a tenth of mm
And here are it's inlets.
Now Emerson.
Here is a proper inlet!
The coating on Emerson is started to fly off by flakes.
Here you can see.
But the coating on Zero Tolerance is also stripped on a tip here.
Next a tuffer test with tin-plate of 1mm.
5 strikes.
It was very very hard for Zero Tolerance.
Now Emerson.
Look at a couple of holes made by Emerson, here and here.
This one is entered the previous hole but this one
and my feelings say that penetrating with a tanto is of course much more easy
Oh, the tip is damaged here.
Oh Emerson... Pay attention the tip itself
and this place...here...I don't know
Shavings started to come off the cutting edge.
I don't know how to show this
I hope it'll be visible
OK then... In addition I also prepared a stainless steel.
Industrial non-magnetic stainless steel.
It's not a tin but also 1mm.
But I won't try the tip of both knives on it.
Ooooooooh....***!
How I haven't seen this? Look at Zero Tolerance. At the tip.
That's what you get with S30V, so at these tests folks
Emerson turns to be better
Of course how we can talk about the staintless steel?
There will be no stainless steel.
WOW!
I'll have to sit down and estimate the results of this testing.
So what? Let's do a bit of batonning in the end.
Both knives aren't really pleasing.
I am doing batonning with released lock
because liner won't withstand it .
Battoning is done across the fibers
to test the load on pivot.
Emerson just doesn't want to enter the wood
it jumps off.
OK, the whole construction seems to hold good
no play, nothing.
Zero Tolerance seems to do batinning better
I mean how it enters the material, going very good.
With Emerson all this is more sad.
Well, I think we can finish on that.
I mean the "active" part of testing
and move on to thinking about the results of what we've got
because it wasn't all obvious.
Let's take a close look at our fighters.
Of course it became a surprise for me
that this piece of tin-plate, 1mm thickness
became an insuperable barrier for both of them.
Begin with the one that went first - Zero Tolerance 350.
Chipping at the tip.
After opening a can I clearly understood
that putting a steel like S30V on a folding pry-bar
isn't a good idea.
You can see these chippings. It's all turned to be after opening a can
and it's enormous chip at the tip is became a culmination of all.
I think that coating holded up very good.
All these paint marks will be washed off.
Lock started to go a bit further.
It was at the very beginning and now going closer to center.
The knife itself: blade is centered, speed-safe is working
it's very important
Now - Emerson
Looking at the tip.
1mm tin-plate was too tough for it
although it was penetrating it much better than Zero Tolerance.
But chips , even on 154CM steel, which is not tempered
to a highest hardness by Ernest Emerson
i.e. it's quite flexible steel but it didn't standed to it.
But again, it penetrated much deeper.
I remind, these 2 holes, this and this is Emerson.
These small ones is Zero Tolerance.
In some of them the tip wasn't even really penetrating.
This one for example... it's just a point.
But cutting edge after opening a can, is a clean Emerson's victory.
But chips are very serious too. Tip itself is broken.
And huge disappointment is this titanium liner,
which closed after striking the back of the blade.
It's understood that it's not a proper use
but Zero Tolerance withstood well and Emerson didn't.
And for the knife that is positioned as
an unbreakable pry-bar it's a minus.
But in summation of all tests
it is needed to carefully collect all my feelings and results.
Knives are going to be resharpened and
after bringing them back to normal shape
we'll talk in details about hard use testing
and comparison of these knives in general
That's all, thanks for watching,
hope it was interesting,
for me personally it seemed like enough action
See you, bye bye