Blue or Orange Double Headed Sheet Metal Cutting Nibbler Drill Attachment Metal Cutter.    Features:  1. Perfect for car repair and house maintenance like metal roof cutting, HVAC vent pipe and other metal sheets.  2. Universal cutting accessories for round and Straight cutting, available for different cutting shapes.  3. Cutting speed is 2m per minute with 3000rpm.  4. Cutter head can be positioned 360 degrees.  5. No any burrs at the cutting edges.  6. No distortion to material.  7. Safe to touch, easy to work with.  8. Powered by a Hand Drill - no additional power source needed.    Specifications: Material: Alloy.  Color: Blue/Orange (Please choose the color you prefer).  Type: Double metal sheet cutter.  Allow cutting thickness:  Ordinary iron plate: 1.8mm;  Stainless steel plate: 1.2mm;  Copper, aluminum plate: 2mm;  Plastic plywood: 2mm;    Package Included:  1 x Double-head Sheet Metal Nibbler;  1 x Wrench;    The operating requirements and accessories replacement method:  1. Digging of the cutter head is especially important for cutting aluminum plates.  2. Open the drill first and then cut it. At the end, exit the drill and turn off the drill.  3. When cutting, the incision of the cutter bar must be perpendicular to the workpiece to be cut to prevent the cutter from breaking.  4. Arbor replacement: Open the cover, remove the lock nut, loosen the set screw, use the pliers to pull out the holder, reinstall the holder, and tighten the screw.  5. Tool holder replacement: Unscrew the compression cap counterclockwise and replace with a new one