I'll try to post this again. I lost the last post on this.
https://r.tapatalk.com/shareLink?s...deforums.com/forums/showthread.php?t=1312880
On sharpening your khukuri:
There are many techniques, mine is really simple based upon the blade design. My HI collection is small compared to many on this forum. I have about fifteen. Out of all the HI blades I have, one is a convex grind. I'm quiet happy with that. A convex grind isn't needed when the V-grind is wide. HI blades are beefy, and display a nice wide V-grind. As wide as the grind is, there is no pinch from the cut, and wood separation is great, even on hardwoods. Yet, you still get the deep penetration from a strike of a V-grind.
With that in mind, I sharpen at about a 20 degree angle, graduating to a smooth stone, and eventually to a strop. This leaves the blade honed to the point it will actually shave hairs from your arm.
Some believe this makes for a fragile chopping edge, but it doesn't. The reason it doesn't is because the edge doesn't shave because it is thin. It shaves because the edge is homogeneous and aligned.
One of the worse edges you can put on a chopping blade is a rough toothy edge. This type of edge will bend or break due to the lack of a contiguous aligned supporting edge.
In the link I posted, the M43 was honed to the point it would shave hair on my forearm. After I fell the hardwood, it took only 5 light strokes on each side of the blade from a steel to reclaim the edge to a point it would slice paper.
As far as sharpening in the field, a diamond rod or small carborundum stone works well. I like carborundum stones for the field, because those stones are still serviceable without oil. Arkansas stones, which I love to use as well as India stones will stop cutting quickly, if not oiled. The stone clogs easily without a layer of oil to suspend the cut. Water stones are great for home and shop, but are a bit expensive and fragile for the field. And, of course water stones require a steady supply of water for proper usage.
Just one man's way. There are many others.
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