Your knife is your most important survival tool over the long-haul.

Keeping it sharp and well maintained is critical and this DIY system, patterned after the Lansky system is easy to make and use.

This type of sharpening system is awesome because it lets you select the gradient of sharpness you want to put on your knife, ax, machete or any other cutting instrument.

It is easy to make, requires minimal materials and lets you sharpen just about any type of edge professionally.

Can you improve on this improvised model? If so, tell us below.