Handheld sharpeners are probably the handiest type of sharpener because many are small and you can take one anywhere you hunt, fish, or do whatever other activities you enjoy outside. When a knife gets dull, instead of continuing to use it ineffectively, just take out your handheld sharpener and put a new, sharp edge on it. Even though many are tiny, the best handheld sharpeners also have more than one sharpening stage. As with their larger counterparts, an early stage is used for replacing the dull edge, with a later stage honing and polishing the blade. For safety’s sake, look for a handheld sharpener that allows you to position your hand in such a way that you can’t easily cut yourself when sharpening a knife.