SWISS istor All-Purpose Sharpener
Recommended by Felco ® for sharpening their complete line of pruners and loppers. This sharpener has a concave composite steel blade. The two precision sharpening edges are bonded into an aluminum handle. Very little pressure is required to sharpen the cutting edge so it is gentle on pruners and loppers. 3-3/4" length and weighs 1 oz.
2013 Master Catalog: Page 415