Full flat grind...

[Hoodoo]

My Gene Ingram b&t has a secondary bevel. Often the term "full flat grind" means that the knife was ground flat all the way to the spine regardless of whether it has a secondary bevel or not.

 

[Martyn]

I may just do that. What do you reckon would be the best way to convex it? Aren't Gene Ingram knives full flat?

Cheers Martyn.

I believe they are. But, like many American knives, they are designed as hunters first. That's where thier market lies. As I said above, full flat grinds make excellent slicers, good for hunting and kitchen work and the profile is seen often on knives designed for this. That's what the ingram knives are designed for. But like everything, there are no absolutes and the boundaries are blurry to say the least.

 

[Martyn]

My Gene Ingram b&t has a secondary bevel. Often the term "full flat grind" means that the knife was ground flat all the way to the spine regardless of whether it has a secondary bevel or not.

That's how I understand it too - I believe that's the generally accepted definition of the profile. But I've never seen a full flat that didn't have a secondary edge bevel - even my sabatier kitchen knives are a little convexed at the edge. Perhaps I should say I've never seen a field knife with a full flat grind and true zero edge.

 

[JakeR]

How would you say is the best way to convex the secondary bevel?

 

[Andy]

Perhaps I should say I've never seen a field knife with a full flat grind and true zero edge.

Cold steel spike springs to mind. A very small knife that isn't a maiin one though

 

[Martyn]

Cold steel spike springs to mind. A very small knife that isn't a maiin one though

The CS spike is designed as a weapon...

It gets away with a zero edge grind because it has a very narrow blade. It's not really a field knife.

 

[Martyn]

How would you say is the best way to convex the secondary bevel?

The best way? On a slack belt grinder.

By hand, you could use and adapt the principles described here http://outdoors-magazine.com/s_article.php?id_article=66 to good effect I would think.

 

[JakeR]

Cheers Martyn, i'll see how it works when i get it! :biggthump