Wire cutters are very sharp. Effortlessly cuts Ultra Green to a maximum length of .020". I had never tied nails before and easily tied my first knot with this tool using the same .020 inch cord. I can't imagine it getting any easier (although I don't have sausage fingers). Hook sharpener not so great. The "grit" isn't quite right and the placement of the hooks makes sharpening difficult. I only use my sharpener, but I use larger hooks in a pinch. Deduct a star because the hook-eye cleaning pen is cross-eyed. I have attached an image. Don't think there will be problems. Tested on a size 18 and 6 hook and it works great with enough room for much larger hooks with no foreseeable problems. Let's see how it behaves over time.