Andis CNG-1 Cord/ Cordless Nail Grinder. Nail Clippers & Accessories. Andis CNG-1 Cord/ Cordless Nail Grinder The sleek, ergonomic nail grinder from Andis features two speeds & runs quielty to suit all pet types & nail types. It features a li-ion battery which has 3+ hours of use, or can be used directly from.. ...