Graham Field Metal Nail NippersThe Grafco 1789, 1790, and 1791 nail nipper series provide specialized tools for trimming thick or difficult nails. The 1789 and 1790 models feature concave blades to follow the natural nail curve, while the 1791 is a heavy duty variant specifically engineered with a barrel spring for maximum cutting power on extremely thick toenails. SKU Product Key Technical Details Graham Field 1789 Nipper Nail 4 1 2" (1 EA) 4. 5 inch length; concave cutting edge;