The Chefs Choice Pronto Knife Sharoener is the fastest 2 Stage manual sharpener on the market today. In seconds, the Diamond Hone Knife Sharpener puts a razor-sharp, stronger, more durable arch-shaped edge on both straight edge and serrated knives. The Pronto Manual Sarpeners Criss-Cross technology uses 100% diamond abrasive wheels that sharpen simultaneously “into” and “out of” the knife edge for a superior burr-free edge with lots of bite. This Chefs Choice Manual Knife Sharpener is compact, easy to use and quiet, the Model 464 manual knife sharpener can be conveniently stored in a drawer. The Diamond Hone Knife Sharpener features a “Soft Touch” handle for an easy, secure grip. Made in the U.S.A. Chefs Choice Diamond Hone Manual Knife Sharpener Features: * EXTREMELY FAST! Fastest manual sharpener available. * Two (2) stages, sharpening and honing/polishing, for razor-sharp arch-shaped edge that is stronger and more durable. * Uses 100% diamond abrasives in Stages 1 and 2: o Diamond abrasive wheels will hold shape indefinitely(unlike ceramic wheels which loose shape over time) o Diamonds will sharpen any alloy o Diamonds are the most durable abrasive - they last and last o Diamond abrasives will not load up(no need to use messy water or oil) * Micron size diamond abrasives in Stage 2 for a super sharp polished edge. * Criss-Cross sharpening technology: o For an extremely sharp edge with lots of "bite". o Diamond abrasive wheels sharpen simultaneously "into" and "out-of" edge for a superior burr-free edge. * For sharpening straight edge and serrated knives; kitchen and household knives, pocket knives, fish fillet knives. * Precise bevel angle control for a 20 degree edge. * "Soft Touch" handle for an easy and secure grip. * Safe for all quality knives.