60 Grit testing - Round Two

[old4570]

Yeah , time for round two ..
And we already have a result for the Ka-Bar Dozier @ 18 degrees ( 60 grit )
Another some what random choice of very disappointing knives .. Knives that have simply failed to live up to expectation in regards to edge holding ( for what ever reason ) .

550 slices , this is only a 250 slice increase on it's previous best .

 

[scottc3]

Doser's Taiwan contractor knows D2, and your results prove that, as 550 slice results are not bad for ~30 bucks, though the 60 grit did not play well with the apex.
I chose to use a KME 140 grit diamond instead of a 100 grit to establish the first edge on a 940 Schenk by Dylan Magnacut reblade because it was .90" thick blade stock, hollow ground to .009"BTE. I was thinking of starting with 300 grit but chanced the 140 because I knew it would take a lot longer the finer I went. thx

 

[old4570]

Doser's Taiwan contractor knows D2, and your results prove that, as 550 slice results are not bad for ~30 bucks, though the 60 grit did not play well with the apex.
I chose to use a KME 140 grit diamond instead of a 100 grit to establish the first edge on a 940 Schenk by Dylan Magnacut reblade because it was .90" thick blade stock, hollow ground to .009"BTE. I was thinking of starting with 300 grit but chanced the 140 because I knew it would take a lot longer the finer I went. thx

I find a great Variance in blade steel ..
It matters not what's printed on the blade .. Like that old saying goes ( oils aint oils ) And blade steel is only as good as it performs .
Not every knife responds to a set formula or method of sharpening .. So those knives that fail or dont do what you want ?
It was just a Lark to begin with ( what would a 60 grit grinder wheel do on my wet stone grinder ) and on disappointing knives the results are , sometimes awesome !
In this series , I have some Hard Steel ( D2 ) that does not perform as expected .. ( No edge holding ) ..
I have seen what the 60 grit can do for softer steels , what can it do for hard steel ?

 

[old4570]

TwoSun TS09 D2 - Factory 100Fail / 180grit 200Fail / 800grit 150Fail / ground 220grit 250Fail
65HRC file skates = No bite / Blade steel is very hard !
With a ground 60 grit edge :

Not sure what I was expecting ? But the knife returned some 400 slices with the 60 grit edge .
This is up some 150 slices over the 220 grit factory wet stone wheel .
I might have to put this knife to the white 80 grit wheel , since it did wonders for the Ganzo D2 .
Video Soon !

 

[old4570]

TwoSun TS134 - 14c28n - 55/50HRC ( 55 Bites - 50 Skates )
Previously Cut / Factory 150 Fail / Guided 100 Fail

As we can see the TS134 did not impress at all ..
So the knife was chosen for 60 grit testing ..

The result was some 350 slices of rope cut for a fail .
This does not sound like much , but considering the previous result of 150 / 100 ..
350 is a rather substantial increase in edge retention ..
The edge did not roll , so it may be possible to tighten the bevel for more ?
Hmmm , should I 80grit this knife ?

 

[old4570]

TwoSun TS208 D2
Previously - Factory 200 Fail / Guided 250 Fail
65HRC file skates !

With a 60 grit edge I got in some 500 slices for a fail .
And the edge stropped back strong .
So a nice increase to 500 from the 250 guided edge .
I might have to do these 3 TwoSun knives in 80 grit and see what happens .

 

[old4570]

Cheap Chinese Mystery Steel !
Previously recorded some 300 Slice Fail with a 220 grit wet stone grinder edge ..
With a 60 grit edge ground over the old edge we now have a 400 slice fail result !
A small increase , but never the less a increase from a grit change ..
Don't U love documented results !

 

[old4570]

Chinese No5 Mystery Steel knife :
Previously , this sample may have done a 100 slice fail .
With the 60 grit edge , we get two fifty ! ( 250 Fail )
Which just might be a decent gain .
I think this one was $15 , so just a cheap Chinese Knife !
Divide that $15 bananas by 250 slices = 6 cents a slice ...
( I have the odd knife that will go 5c a slice - $25 Banana knife for 500+ slices )

 

[old4570]

Manly Comrade D2 - Not a cheap knife ..
Previous result - 50 slice fail !
60HRC file just bites

60 grit edge - returned some 250 slices for a fail
I was so cold I lost count - it was a 250 fail ..
So from 50 to 250 ... Again this is not a cheap knife , but a rather expensive underporforming knife !
250 is not flash by any margin for D2 .. Might be ok for Aus8 / 420 / 440 or CrMov , but not for D2 .

 

[old4570]

SRM9201 D2 ( ? on that D2 ) - Previously ( link to review )
SRM has been a disappointing brand for me , for a decade or so !
This knife was my last SRM .. I thought D2 , they can't possibly ball's that ! Can they ? ( They did - for me )
Factory 150F / 220grit wet stone grind 100F / guided edge 120F .
This is just astoundingly bad for D2 .. So what can the 60 grit wheel do for this knife ?

I wanted more !
But as mentioned , the SRM 9201 disappoints !
200 slice fail ..
So 100% better than the 220 grit ground edge .. ( Still garbage for D2 - if it's D2 )

 

[old4570]

Knife No8 - Cheap Chinese Mystery Steel !
Previously - 50 slices on a factory edge / 50 on a guided edge / 50 on a 220 ground edge ...
As can be seen , performance on this one is just rubbish ! ( I call a 50 fail - Rubbish )
The 60 grit edge brought the performance to a 150 slice fail .. A substantial gain , if not still disappointing !

Video Soon :

 

[old4570]

Last knife = TunaFire D2 ...
Previous results -

These be previous results : ^

 

[willc]

Manly Comrade D2 - Not a cheap knife ..
Previous result - 50 slice fail !
60HRC file just bites

60 grit edge - returned some 250 slices for a fail
I was so cold I lost count - it was a 250 fail ..
So from 50 to 250 ... Again this is not a cheap knife , but a rather expensive underporforming knife !
250 is not flash by any margin for D2 .. Might be ok for Aus8 / 420 / 440 or CrMov , but not for D2 .

I also expected better results from the Manly.
Do you think it could be a burnt edge from final factory grinding?

You may see better results after a couple more sharpenings.

 

[old4570]

Manly has been at the rope many times .. ( Half a dozen times ? )

?) Regarding the manufacturing process ..
Even , is it D2 ? It's hard enough , just not good at edge retention .
Over cooked steel tends to fracture easily , I havent seen that !
Is it grain structure ? Could be just poorly cooked D2 .. I just dont have equipment to say Boo in this regard ..
What is a fact unfortunately , is the lack off edge holding .

 

[scottc3]

What is a fact unfortunately , is the lack off edge holding .

I also expected better results from the Manly.

Expectations... it does seem low when compared to old4570's knife cut performance for blades less then half the cost.
Your half a dozen passes, cut count "fact", plus your "over cooked" observations from experience, can be added to Boker's specs= 0.11 thick blade stock, slip joint, made in Bulgaria, and Luvthemknives 3 D2 Manly's tested within spec for both steel type and advertised Rockwell range (~60). I bet this level of performance would be acceptable for most non-hobbyist with out any complaints... Expectations....

 

[old4570]

Hmmm , expectations ! - Value for money ?
What do people pay for ? Why I hate spending north of $100 on a knife ! I really despise buying a overpriced underpeforming knife ..
If you buy a cheap knife and expect a average performing knife , that tests out to be outstanding = Yeee Ha !
And if it ends up being average , then you got what you paid for !
Butt & it's a big Brazilian butt ! Shell out a lot of money ( ? What's that ? ) and get a poor performing knife , it just Get Smarts !
And in regard to the Manly , I have tried and tried to extract performance ( edge holding ) from it . At this rate I will grind the blade away looking for it !

One more knife to go ... The TunaFire GT .. And then the 60 grit testing will be over !
It was certainly interesting .
And a few knives will move onto 80 grit testing .. That Ganzo really loved the White Wheel , I mean ............... 700+ is where Super Steels live .
So I will have to do some more 80 grit tests ...

 

[old4570]

TunaFire GT D2 ... @ 60 grit !

The TunaFire is well documented ..
100 Fail on the factory edge
300 Fail on the guided knife sharpener edge
300 Fail on the 220 grit wet stone grinder edge
350 Fail on the 60 grit edge

 

[old4570]

Round one :

Civivi Dogma D2 100/200 previously - 60 grit returned 600 ( 400 Gain )
CH3509 D2 250 & 18 degrees - 60 grit returned 550 ( 300 Gain )
Leupold 440c 100 previously - 60 grit returned 350 ( 250 Gain )
Gearbest D2 ? previously - 60 grit returned 300 ( ? Gain )
Knife 5 rolled the edge = Void Test
Spyder / co (?) previously 100/200 - 60 grit 650 ( 450 Gain )
Y start D2 previously 100 - 60 grit 300 ( 200 Gain )
Navy 440 previously 100 - 60 grit 350 ( 250 Gain )
WithArmour 440c previously sub 100 - 60 grit 450 ( 350 Gain )
Crazy Fox D2 previously 200 - 60 grit 500 ( 300 Gain )
Kershaw Highball XL previously 200 - 60 grit 300 ( same bevel angle ) ( 100 Gain )

Round two :

Dozier D2 previously 300 - 60 grit 550 ( 250 Gain )
TwoSun TS09 D2 - Factory 100Fail / 180grit 200Fail / 800grit 150Fail / ground 220grit 250Fail - 60 grit 400 ( 150 Gain )
TwoSun TS134 14c28n Previously Cut / Factory 150 Fail / Guided 100 Fail - 60 grit 350 ( 200 Gain )
TwoSun TS208 D2 Previously - Factory 200 Fail / Guided 250 Fail - 60 grit 500 ( 250 Gain )
Chinese mystery steel 300 - 60 grit 400 ( 100 Gain )
Chinese mystery steel 100 - 60 grit 250 ( 150 Gain )
Manly Comrade D2 50 - 60 grit 250 ( 200 Gain )
SRM9201 D2 100/150 - 60 grit 200 ( 50 Gain )
Chinese mystery steel 50/50/50 - 60 grit 150 ( 100 Gain )
TunaFire D2 100/300 - 60 grit 350 ( 50 Gain )

So here are the results to see more easily !
So for those that came along for the ride , I hope you got something out of it .
So some knives gave fantastic results , whilst others were more conservative ..
But no result is in the negatve , except for the one knife that rolled it's edge like a rollin champ .. ( Null and void test )
And some knives remained disappointing .. Well , when you buy a junk knife hu ?