One review said that they sharpened a knife under running water. Is that needed? Does it come with instructions?

It doesn't come with instructions (if memory serves). My father was a butcher and never used water while sharpening his knives. You simply run the knife blade BETWEEN the two rollers repeatedly until there is no drag whatsoever. At that point your knife will be quite sharp and you will notice a difference immediately. What I like about this model is the handle. I can slip it into my knife block where the kitchen scissors would normally go. I use the sharpener more often than the scissors so it is just a convenience thing. You will be happy with this item.

What is the sharpening angle 15 or 20 degrees?

After a little work with a protractor and ruler, my estimate is the sharpening angle is 20 degrees, plus or minus 1 or 2 degrees. Hope that helps.

Would this be a good gift for someone who doesn’t know anything about sharpening knives?

This is an old fashioned knife sharpener we had in the 1960's. This is basic BUT WORKS GREAT. Always remember that "dull" knives will cut you badly. BE CAREFUL The sharpener is reasonably priced so you might purchase it and show the individual how to use it. I do NOT have any expensive Chef's knives so I don't worry about all of the fancy terms that come with knives. I had looked for this sharpener for years because I lost mine sometime ago.

Product Dimensions	3.5 x 2.8 x 18 cm; 142 g
Is assembly required	No
Warranty description	No warranty.
Batteries required	No
Item weight	142 Grams

Knife sharpener BOJ

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