Full flat chisel ground H1?

D

Dr Heelhook

Joined
Jul 24, 2007
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3,285
I was just curious, would it be possible to make a full flat ground blade in H1, if it's a chisel ground model? I know all current H1 models are hollow ground, since you have to grind both sides at once because of the hardening, but what if the knife is only ground on one side?
I read a thread about someone discussing the possibility of a chisel ground Spyderco a while ago and it made me think of this.
 
As I have understood it they need to grind both sides at the same time to avoid warping. This can only be done in production with hollow grinding. So I do not think a flat chisel grind is possible at this moment.
 
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Don't hold your breath, Spyderco will not make a chisel grind although I wish they would consider a sprint-run.
 
Lycosa said:
Don't hold your breath, Spyderco will not make a chisel grind although I wish they would consider a sprint-run.
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Not really holding my breath, mainly just wondering if it would be physically possible. Do they have anything special against chisel grinds?
 
The CG was listed as the least popular blade style in a Spyderco poll. Most don't understand the chisel grind. So, I had Mikkel Willumsen make me a beaut.
 
Man, chisel grinds are really simple to resharpen, and work great. Wish people didn't hate them.
 
I think they're great as long as they're on a chisel. All my chisel grind knives are long since retired. Been there, done that, not goin' back.
 
yablanowitz said:
I think they're great as long as they're on a chisel. All my chisel grind knives are long since retired. Been there, done that, not goin' back.
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With ALL respect, why? I have always wondered what problems people have with them, and what the disadvantages are. I like them for chopping, and have the bevel on the right while I hold the material with my left hand.
 
When the edge bevel of a blade cuts into material, that material resists to some degree. It pushes back, and it pushes on both faces of the edge bevel. The direction the blade will naturally try to cut is determined by the centerline of the edge angle. In a conventional V grind edge, that centerline is the centerline of the blade as well. In a chisel grind, the centerline of the edge angle is skewed. It points towards the flat side, so that is the direction the blade wants to turn. On a chisel, you have the length of both the blade and the handle to provide leverage to control the direction of the cut. On a knife, the blade will try to turn into the cut and the only way to counter that is by torquing the handle the other way. I find it tiring to use a tool that continually fights me in that manner.
 
Yab is correct. ^
On a SD blade, is won't matter if the blade is chisel and which side the grind is on.
Also, I just ordered a Spyderco with a fully serrated blade. This is as close as you going to come to a chisel ground blade on the Spydeco. I just realized this yesterday.
 
The chisel ground blade was made for specific purposes. A user EDC knife is not one of them.
 
And yes, it should be possible to do a flat-grind H-1 chisel grind blade. The warpage issues arise when trying to grind the second side after the blade has work hardened from grinding the first side. The big question is, could they sell enough of them to break even, much less make a profit. Polls people have taken on the forums seem to indicate it would be unlikely. Chisel grind knives do a few things well, but generally they are ground wrong for a right-handed person. Good for all the lefties, but not so good for the majority of the world populaton.

As for SD blades, I can't help. I've carried at least one blade every day for 47 years without ever needing to use one for a weapon. Self defense is so far down my list of priorities that I'd need a telescope to see it.
 
yablanowitz said:
And yes, it should be possible to do a flat-grind H-1 chisel grind blade. The warpage issues arise when trying to grind the second side after the blade has work hardened from grinding the first side. The big question is, could they sell enough of them to break even, much less make a profit. Polls people have taken on the forums seem to indicate it would be unlikely. Chisel grind knives do a few things well, but generally they are ground wrong for a right-handed person. Good for all the lefties, but not so good for the majority of the world populaton.

As for SD blades, I can't help. I've carried at least one blade every day for 47 years without ever needing to use one for a weapon. Self defense is so far down my list of priorities that I'd need a telescope to see it.
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Ok thanks, that's nice to know at least. There are of course downsides to a chisel ground blade, but it still kinda sounds like the best option for a home made knife project, should one ever get a hold of a nice piece of H1 (however big the chance is of that happening). That double simultaneous hollow grind method that Spyderco uses sounds a bit complicated to use outside of a factory.
 
If you make or buy a chisel ground blade, make sure it's Zero ground chisel.
 
yablanowitz said:
And yes, it should be possible to do a flat-grind H-1 chisel grind blade. The warpage issues arise when trying to grind the second side after the blade has work hardened from grinding the first side. The big question is, could they sell enough of them to break even, much less make a profit. Polls people have taken on the forums seem to indicate it would be unlikely. Chisel grind knives do a few things well, but generally they are ground wrong for a right-handed person. Good for all the lefties, but not so good for the majority of the world populaton.

As for SD blades, I can't help. I've carried at least one blade every day for 47 years without ever needing to use one for a weapon. Self defense is so far down my list of priorities that I'd need a telescope to see it.
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Well, I guess you still haven't died so far. Doesn't mean that there's zero probability of it happening. ;)
 
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