This sharpener will produce a double beveled edge on a straight blade... the secret to keeping knives sharp longer. 

• Made with 100% diamond abrasives
• Patented precision guides for accurate control of the sharpening angel and foolproof results
• Unique sharpening technology for an extremely sharp, burr-free edge
• Two stages-sharpening & honing, provide an arch-shaped edge that is strong and durable
• Sharpens all types of knives-straight edge or serrated, even pocket knives and sporting knives
• Comfortable textured handle for a secure hold