Mac<br><br>As Bones indicated, a thin cylindrical diamond sharpener is effective in sharpening the serrations. EZE-Lap makes at least 2 kinds. We have used the model S EZE-Lap sharpener with good results in sharpening the serrations. It has a thin D-shaped blade which can sharpen other edges as well. We have used a variety of their sharpening products to our satisfaction. You can reach their online catalog via the ETS Manufacturers links. They're popular in the USA. I don't know about other sharpeners.<br><br>Our only serrated blades are on our Leatherman tool. Our new blades have all required sharpening before use. I agree with all the criticisms of serrated blades for general purpose knives. But come to think of it, we have serrations on my favorite steak & grapefruit knives. :-) So I guess I don't hate them all.<br><br>Good luck,<br><br>John