Grinding a double edge.

[trentu]

Had 4 double edges to do for some friends in the sand box. Had GLW cut them out for me. Ruined one. Could not start that triangle in the base of the blade. I want to do them like a Gerber MKII grind but just cannot get that triangle started at the guard. I think just plunge grinding it there would cause a weak point between the handle and blade. Anyone with experience with dagger blades?? Thanks.

 

[delbert ealy]

Angled plunges are a challenge, I've done 500 daggers or so and I just started doing angled plunges on some of my single edges last year, they are cool. My advice would be to cut them in with a round file and then grind from there. It takes a bit different technique and maybe you won't ruin the next one.
Good luck,
Del

 

[Bufford]

A double edged knife is basically two knife edges on one blade. I start grinding out the bevel just as I would with any knife. Pay attention to where the wheel is on the steel at all times.

Mark the center line of the dagger. I grind edge up, and start from the edge and work my way back up to the center spine of the dagger or double edged knife. I am doing a hollow grind, and the wheel sits nicely in the hollow as I work my way up the blade.

Keep the steel moving evenly up and down from the tip to the tang, and stop the grind just before reaching the center line. Turn the blade over and do the other three grinds.

When going to a finer grit, such as 120 and 220 grits, then bring the grind lines together to form that crisp center grind line together. Go slow and easy and check your work often, it really is not difficult.