Handihone Universal Sharpener 2-1/2 Inch Self-contained, efficient electric model Long-wearing diamond-coated sharpening surface quickly restores the clipper blades cutting surface while removing only a minimal amount of blade material. Compact, lightweight design is easy to use and maintain. No messy sharpening compound or honing oils are used. Incorporates proper curve for A-5 and similar hollow-ground blades