I’ve recently come across questions regarding differences between the Mora High Q Robust, Mora Companion MG and Companion Heavy Duty (HD). In this video I try to demonstrate the differences, similarities and talk a bit about different applications for each knife.
There are numerous ways and sharpening systems available. However, none of them will be perfect and suitable for all the different blade types and designs.
People are generally unable to maintain an angle while sharpening, therefore, we inevitably create edges which are more or less convex. To avoid that, we invented various useful devices, which hold a knife, as well as the sharpening stone, at a fixed angle. One of such devices is the Lansky Deluxe Knife Sharpening System (in the picture above), which allows us to create those perfect, razor v-shaped cutting edges.
The problem with such edges is, as shown in the test, that they are fragile. They tend to chip, roll and dull quicker than convex edges. Yes, they cut better but is it really noticeable in a day-to-day use of a utility knife? Take a look at the video below, where I show how a strong convex edge push cuts paper towel. Do you really need your bushcraft/survival knife to be sharper than that? I know I don’t.
Therefore, for my bushcraft or EDC knives I tend to use other sharpeners and save the Lansky System for special occasions. If I’m out in the field, I might use a simple double sided DC4, which can bring your edges to hair popping sharpness even without a strop. It’s small and lightweight which makes it easy to transport. I might also use an even smaller, lighter and simpler diamond pen rod, which also works well, although, it seems to require a strop as it is much coarser.
Those are great in the field but at home their, otherwise advantages, small size, makes them quite inefficient and less safe. It takes more time to remove steel with such a small sharpener, plus it’s easier to cut yourself when you have to manoeuvre round small surface with a large sharp object.
For me the choice is simple. At home I use water stones grit 400 to 3000, followed by a home-made strop. While they are a bit a pain to use as they need to be soaked in water for several minutes before use, they get worn out and need to be evened up every now and then, and the whole process of sharpening can be a bit messy, they are still the best option for more serious home sharpening. Why? They’re relatively inexpensive, they don’t have moving parts (easy to use and can’t break unless you drop them on the floor), don’t require extra special equipment, are large enough but not too large, and do not determine your sharpening angle, which allows you to slightly convex your edges if you choose to do so.