Chisel/ hollow ground blade

[Natlek]

I wanted to try 11 inch wheel on my new grinder for the first time so i grind this .....3mm on spine , hollow grind only on one side and it is 0.3mm now on edge .Now it is thinner then full flat grind , thicker then double hollow grind .So what do you think , why I don t see knives grind like that? For most task this is left hand knife ....?? But for some task it can be used with right hand ...........?

 

[Stacy E. Apelt - Bladesmith]

It is called a razor grind ... same as a straight razor blade. The reason it isn't as common on knives it is hand specific (left or right) and the edge is more delicate. Works great on things like a sashimi blade.

 

[AVigil]

If you have not seen that on knives, you have not seen enough knives.

Mike Snody regularly makes hollow grind chisel grinds and so have others.

 

[Richard338]

I made one in wharncliff style out of 0.25" thick A2 with an 8" wheel, cut a few pieces of paper and then put it on a shelf...

 

[Bigfattyt]

I have a similar type of grind on a small neck knife.

Hollow grind on left side to essentially a zero grind, flat on right, but the edge bevel is set on the right. I convexed it. Cuts well.

I'd like to try one with a grind on the right side to compare.

are you planning on sharpening the final bevel on the left or right, or both sides??

Many chisel grind (One sided grind) often there is a main bevel and edge bevel, then a much shallower, near flat bevel on the flat side.


Some love chisel grinds. I have a knife I forged where the left side is a full convex, and the right side is completely flat (my first attempt at a Yakut style knife).

I may try a bit of an angle on the flat side...as I watched a video with a native a Yakut doing a few shallow strokes on the flat side of his knife.

Flat side

This cuts very well when whittling right handed. Worked very well to shape/contour a hard hickory handle for another hidden tang knife I forged.

 

[Natlek]

I made one in wharncliff style out of 0.25" thick A2 with an 8" wheel, cut a few pieces of paper and then put it on a shelf...

What you don t like ? How you sharpen that knife ?
I just sharpened this one , only from hollow side on 35 degree.It is to late now to try to cut something other than paper . I would make some test tomorrow .

 

[Richard338]

Nothing wrong with it. It was the first thing I made getting back into making about 3 or 4 years ago. I was soon onto many other projects.

 

[Natlek]

If you have not seen that on knives, you have not seen enough knives.

Mike Snody regularly makes hollow grind chisel grinds and so have others.

Well , I google Mike Snody and i like what i see .He make excellent knives .I think i should make one .........
Here is one Snody with chisel/hollow grind ...........Seems that is sharpened from both side .

 

[J. Hoffman]

I wanted to try 11 inch wheel on my new grinder for the first time so i grind this .....3mm on spine , hollow grind only on one side and it is 0.3mm now on edge .Now it is thinner then full flat grind , thicker then double hollow grind .So what do you think , why I don t see knives grind like that? For most task this is left hand knife ....?? But for some task it can be used with right hand ...........?

I'm more curious on the wheel on your grinder. That looks pretty scary to me.

 

[Natlek]

I'm more curious on the wheel on your grinder. That looks pretty scary to me.

Only if you look from wrong side
See , now it not look scary at all But I agree, one should be careful when working with power tools .......

I'm used to wheels like that ............. I've been with them all my life working on motorcycles and cars

 

[Joshua Fisher]

I make quite a few nakiris out of 1/16”stock with a chisel hollow grind and really like how they perform, you do have to make them for right or left hand use but the flat back feels nice in use when your chopping or cutting up vegetables. I find for edge geometry that I can bring the grind higher on really thin stock than if I did a double hollow grind which I think improves cutting performance. They can also be really useful for woodworking tasks were you may want a flat back like a chisel to reference, I had one of my small edcs ground like that and it was great for trimming dowels flush. I typically sharpen blades like that on both sides to help balance cut bias but that comes down to preference and you can adjust how much you sharpen on the back side to change how the knife behaves while cutting.

 

[J. Hoffman]

It is called a razor grind ... same as a straight razor blade. The reason it isn't as common on knives it is hand specific (left or right) and the edge is more delicate. Works great on things like a sashimi blade.

Can you post a picture of that? All my straight razors have a double hollow grind. I've never seen one with a single bevel and couldn't find any pictures of any.

 

[Stacy E. Apelt - Bladesmith]

I was mistaken. I thought my grandfather's old straight razor was single grind. I don't do straight razors, so I gladly yield to your experience. Now that I think about it, I realize all the straight razors I have seen are double hollow grind. I must be getting old


Somewhere in the shop I have an old Japanese bench knife made in single hollow grind. It is used to trim plugs, dovetails, and joints flush. Haven't seen it in a good while. Going to have to look for that tool.

 

[Natlek]

Chisel mania I can t find anyone who is left-handed to try this knife , can you believe that ?? And my left hand is good for nothing .....only for watch maybe !
So I grind two more chisels this time for normal humans..... D2 steel are all three knife .If i have time I will put handles tomorrow so i can make some tests ......So far I like what I see ,thinner then V grind and thicker then Double hollow , must be good

 

[AVigil]

Many people use a left side chisel grind who are right handed.

 

[Natlek]

Many people use a left side chisel grind who are right handed.

I sharpen edge only from from hollow side .I start to work on handle so i shape tang and now it is little problematic to hold and push harder when cut .Seems that sharpening only from one side is wrong decision .With left hand when I try to cut soft wood blade push all time deeper in wood , with right hand blade push out of wood ...steering is right word i believe ? But I need handle to be sure that it can or can not be under control.........
I decided to make Puukko stile handle for this left handed ?

I found this so ..........why not to try .I have make several kitchen knives like this one and sharpening only one side don t work well ...
https://www.knivesplus.com/faqchiseledge.html

 

[AVigil]

Yes, if you want a knife to whittle wood or for the kitchen you should have them specific for the correct hand.

If it is just for cutting stuff it will work, hundreds of thousands use an Emerson left hand chisel when right handed.

 

[eric brinkerhoff]

The grinds sure do look good!

 

[Mitchell Knives]

I've made a ton of right hand hollow chisel grind knives.

They cut extremely well and are easy to sharpen.

 

[Natlek]

I've made a ton of right hand hollow chisel grind knives.

They cut extremely well and are easy to sharpen.

How you sharpen them , both sides ? I just sharpened one of this from both sides ................... it's two o'clock after midnight here And it cut like any normal knife ?