[Usage of knife sharpener] tage Turn Dull Knives Sharp - First, Coarse sharpening. Place knife on the first sharpening slot, using slight downward pressure, run the blade from its heel to its point through the slot. Repeat three to five times. And then, repeat the first step on the second sharpening slot to run the blade.11 [kitchen knife sharpener] Versatile & Easy use - Just 3 swipes with highly efficient knife blade sharpener make old knives cut like brand new - in seconds. IDEAL FOR chef's knife, butcher knife, hunting knife, pocket knife, and more. (except scissors and fine toothed knives) [best knife sharpener] Save Time & Money - Come with sharpening Guide. You will quickly and effectively repair knives.Get a razor sharp knife in seconds, knives will work like new.It's the perfect complement in most kitchens Save the money of buying new set knife. [chefs choice knife sharpener] Superior Sharpening Performance - The diamond and ceramic abrasives pass 10,000 times field use test. Made with high quality materials, knives will work like new. [ kitchen portable knife sharpener ] Safety & Portability - We put the safety of our customers above all else. The humanized design of the bottom of the sharpener with a non-slip suction pad base can be steadily sucked on the smooth desktop and other places during operation. Effectively release your other hand to protect your hand from being scratched.