【Functions】: This metal sheet cutter can cut sheet metal, including steel, copper, aluminum, and stainless steel, for both flat and curved surfaces. 【Cutting Parameters】: Min. Cutting Radius: 12 mm; Max. Cutting Thickness: Iron Sheet: 1.8 mm; Stainless Steel Sheet: 1.2 mm; Copper, Aluminum Sheet: 2 mm; Plastic/Fiberboard: 2 mm. 【Advantage】: The double-head design allows you to continue cutting with the other cutting edge when one side is dull. The cutting edge direction is 360 degrees adjustable 【Manage Multiple Shapes】: With this cutter, you can cut a straight line, a curved line, an arc line, or many other irregular lines and shapes 【Scope of Application】: The metal nibbler cutter can be used on 8mm 1500~3000rpm electric drills or pneumatic drills