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 dual cutter heads are adjustable, allowing you to cut in any 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 air drills. 5.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 dual cutter heads are adjustable, allowing you to cut in any 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 air drills. 5. Cutter is portable and compact, suitable for car repair and maintenance and sheet metal productions. Specification: Condition: 100% Brand New Material: plastic + metal Min. Cutting radius: 12mm Maximum cutting thickness: Iron sheet: 1.8mm / 0.07in Stainless steel sheet: 1.2mm / 0.05in Copper, aluminum foil: 2 mm 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, move it away from the sheet metal, 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.