The World's Fastest Knife Sharpener by Accusharp® makes anyone an instant expert because it's pre-set to sharpen to the proper angle every time, lightning-fast. No more messy oils or stones! In about 10 seconds you can sharpen even serrated knives, cleavers, axes, machetes and other cutting tools. The large ergonomic handle fits in either hand safely and the full length finger guard protects your fingers. The diamond honed Tungsten carbide sharpening blades will give a razor edge which will last for years. The blades are double sided and recessed for safety and control. Made in the U.S.A. The World’s Fastest Sharpener will not rust can can be cleaned with soap and water or in the dishwasher. It is excellent for garden or household tools too!