Identify the bevel angle of the blade, better known as the "rough grind angle." Every knife is at a particular angle to suit all your needs and purposes. The majority of the pocket knives have a bevel edge is 25 to 30 degrees. Call the manufacturer of the knife if you are "weary" of this. Or go online and find a specific bevel angle chart. Nevertheless, when you find the bevel, you'll see the blade is honed into it for obvious purposes. How to sharpen a pocket knife begins with learning angles.
"How do I use this daunting metal rod?" I hear you ask. Well, it's not too hard, really. The best way for a beginner is to balance the steel on a surface with the tip secured by a damp tea towel. You want to get that angle right, whether it's around 15 degrees for a Japanese knife or 20 degrees on a German or French blade. Then swipe slowly down, away from you, making sure the whole blade is honed – around five swipes on each side should do.
I recommend it as a lightweight alternative to larger stone for smaller knives. Leather necklace is comfortable and seems strong. I conditioned it for suppleness and swim with it on tightened as a choker. Stone is small, dog-tag size. I use it with water. Functional for small folder knives and multi-tools. Not useful for large fixed blades, since you can't make a long stroke. Small to grip. I use double-sided tape on one side to keep it in place on a flat rock. Not sure of grit, seems like around 1000. It took a while, but i got my old boy scout knife sharp.
The Fallkniven DC3 Diamond/Ceramic Whetstone Sharpener will make a believer out of anyone willing to invest a bit of time in the process. A big advantage of this stone is that it can be taken anywhere, used anywhere, without any form of lubrication and will produce an amazing sharp edge on whatever needs sharpening. Timeless Old World tech that still dazzles.