Using a sharpening stone can be difficult to use when trying to
sharpen a knife. You have to be very careful to keep the angle of the
blade in relation to the stone the same the entire time you are
sharpening your knife. If you do not know how to sharpen a knife
correctly on a stone, it is very easy to make the knife duller than it
was before the sharpening.
This is why there are products
like the 2-step knife sharpener that claim to sharpen a knife easily in
only 10 seconds. The Smith's 2-step knife sharpener claims that after
only a few swipes through the carbide side and then through the ceramic
side you will have a sharp knife.
This product will not be able to sharpen a knife such as the Ozark Trail dollar pocketknife,
but it will be able to sharpen knives that only a little dull. The
knife sharpener is sold for less than $3 and for the price it works
well but if you need to do some serious sharpening then you are still
better off learning how to use a real sharpening stone.