Klein Tools 76011B Nibbler Tool Cuts soft sheet metal, plastic, soft copper and aluminum, and tubing Ideal for air conditioning and heating installation, automobile work, model making, and sheet metal construction Cuts: Up to 18 gauge soft sheet metal, soft copper and aluminum up to 1/16-Inch, and tubing from a 1-Inch I.D. Weight: 5.6-Ounce. Lifetime warranty on material defects and workmanship for the normal life of the product