Lansky QuadSharp QSHARP is our list’s smallest and most compact knife sharpener. At the same time, with a size of only 4.25x 0.5 x 2.25 inches, it is perfect for sharpening pocket knives for your hunting needs. Further, the way is just to hold the knife with your dominant hand and use the other hand to hold the sharpener, after which you pull the blade through the desired angle slot.