The Original Work Sharp Electric Knife and Tool Sharpener is a fast, easy and stylish way to sharpen all your knives and tools with precision and repeatability. The Knife & Tool Sharpener uses precision angle sharpening guides to ensure that you get the perfect angle every time. Using flexible abrasive belts, the Work Sharp® Knife & Tool Sharpener sharpens straight-bladed knives, serrated knives, and any other shape or type of blade. Two guides are included: a 50° guide for hunting and outdoor knives (25° per bevel) and a 40° guide for thinner blades and kitchen knives (20° per bevel). Compact and powerful, this system operates off any 12-volt system with a power inverter in a vehicle, boat or RV.