Heavy-Duty Air Nibbler Get a bigger bite and better angle cuts with Ingersoll Rand's 325B Heavy-Duty Air Nibbler. Instead of shearing or sawing, the tool actually nibbles cold rolled steel, plastic, tin, aluminum, and other metals up to 18 gauge thickness at rates of more than 6 ft. per minute. It's ideal for paint and auto body shops, tinsmiths and sheet metal shops. . Cuts out quarter panels without distorting the edges of the material Start cuts in the center of a panel Holds a tight 1/4 in. radius with great accuracy Easy to operate and control Balanced, lightweight tool for less user fatigue Requires 1/2 in. pilot/starter hole . Heavy-Duty Air Nibbler - 325B 325B