You're viewing our Chef's Choice 130 Electric Sharpener 3 Stage 20 Deg Dizor EdgeSelect Platinum, Model# 0130506. The 130 professional 3-stage electric knife sharpener is the ideal solution for improved cutting performance on 20-degree class knives. Using 100 percent diamonds, the hardest natural substance on earth, our patented abrasives deliver a sharp edge in the first stage. The second and third stages create different finishes based on the cutting task. The second, manual steeling stage, creates a micro-serrated finish while the third stage uses patented stropping disks to create an unparalleled polished finish. Precision angle guides ensure accurate sharpening throughout the entire blade length and eliminate any guesswork. This unit is designed to work with both straight-edge and serrated knives. Contact us with any questions you have about this product.