1.The sheet metal cutter is very practical, this cutter can cut stainless steel sheet, iron sheet, aluminum and copper sheet, etc. Nibbler 2. powered uses dual cutting heads are adjustable, allowing you to cut in any direction you want. 3.With this metal cutter, you can cut straight line, curved line, curved line arc or many other irregular lines and shapes. 4.The metal nibbler cutter can be used on 1500~3000rpm 8mm electric or air drills. 5.The cutter is portable and compact, suitable for car repair and maintenance and sheet metal productions. Features: 1.The sheet metal cutter is very practical, this cutter can cut stainless steel sheet, iron sheet, aluminum and copper sheet, etc. 2.powered nibbler uses double cutter heads are adjustable, you allowing to cut in the direction you want. 3.With this metal cutter, you can cut straight line, curved line, arc line or many other irregular lines and shapes. 4.The metal nibbler cutter can be used on 1500~3000rpm 8mm electric or pneumatic drills. 5.Cutter is portable and compact, suitable for productions car and sheet metal repair and maintenance. Specification: Condition: 100% Brand New Material: Plastic + Metal Min. Cutting Radius: 12mm Max Cutting Thickness: Iron Sheet: 1.8mm / 0.07in Stainless Steel Sheet: 1.2mm / 0.05 in Copper, Aluminum foil: 2mm Plastic/Fiberboard: 2mm/0.08in Size: approx. 18 * 7.8cm / 7.09 * 3.07in Weight: approx. 463g Package Included: 1 * Metal Cutter Other Accessories Instruction: 1. The cutting edge should be oiled frequently, especially when using it to cut aluminum sheets. 2. First turn on the electric drill, then turn it off, and after cutting, take it away from the metal sheet, then turn off the electric drill. 3. During cutting, keep the cutting rod vertical to the sheet metal surface, in case the cutting edge breaks.