ITEM NAME:Saw Sharpening Attachment Sharpener Guide Drill Adapter Rota N6J7 H8M2 F R1A3 Description&Preview.Easily sharpen dull, slow-cutting chain saw blades. Fits for 150w drill rotary. Easily screws on to your rotary tool in place of the tool's housing cap. Due to the light and screen setting difference, the item's color may be slightly different from the pictures.