Tuna Steak knife and fork

karlo ban · Mar 6, 2019

Hi everybody!

I just completed an order for a customer. He is a restaurant owner and he wanted a tuna steak knife and fork. If he likes this prototype I might get a free diner

hope you like it!

Fork is from 416 and knife is from 416 and blue quenched in water at 63 HRC

Thanks for watching!

Grouser1741 · Mar 6, 2019

That blade sweet man. Now I want to try to make a fork thanks LOL

i4Marc · Mar 8, 2019

You can tune a piano, but you can't Tuna fish. _REO Speedwagon.

I think a knife and fork is a fine trade even for a dinner, but for the whole diner is a great deal. :thumbsup:

karlo ban · May 20, 2019

first batch is done.

hope you like the picture.

coldsteelburns · May 21, 2019

Nice! Are you forge welding your own steel? I'm also curious, how are you testing the core's hardness, I'm always interested in learning how guys specifically test their laminated knives' hardness.

I gotta say, I think the fork you drew in the first picture looks pretty cool too, the twisted handle (at least it looks twisted) has a pretty neat look to it. Are you making a fork for each of the knives?

~Paul
My Youtube Channel
... (Just some older videos of some knives I've made in the past)

karlo ban · May 22, 2019

thanks, man!

yes, I am making my own steel. and forks are in the making at the moment for each knife along with nice wooden box.

I am mechanical engineer, I have ex colleagues working in labs so I can test pretty much what I want for free (maybe not for free, I have to buy coffee or pay lunch for bigger project)... Rockwell, Brinell, Vickers...

just to be clear, on the pictures is my blade hardened by me but I did not take them. it was a friend who was testing my abilities...

coldsteelburns · May 22, 2019

Oh how clever! Testing the core on the square ricasso and spine. I don't have a Rockwell diamond penetrating tester and have never used one (I just have a set of hardness chisels in A2 for testing directly on the edge), but I've just always seen guys testing the ricasso/tang area or the flat of the blade, so I was always curious how guys were their san mai and differentially hardened blades.

If you don't mind my asking, where are you able to to find the blue steel as a mono steel? I've only seen it pre-laminated, except for when Aldo had it for sale that one time.

Great job once again!

~Paul
My Youtube Channel
... (Just some older videos of some knives I've made in the past)

karlo ban · May 23, 2019

you can always heat treat it and then just grind one side off or simply tear it apart with chisel and hammer (wear safety glasses) and voila, you have destroyed piece but you have core to test it easily.

you can buy blue steel here https://www.dictum.com/en/steel-cca/blue-paper-steel-from-japan-530-x-30-x-4-5-mm-719621

coldsteelburns · May 23, 2019

Thanks! I haven't checked Dictum for a while and for some reason I thought they only sold white and blue in pre-laminated billets. Good to know!

~Paul
My Youtube Channel
... (Just some older videos of some knives I've made in the past)