Item Type: Double Headed Cutter Material: Alloy Model: YT-160AS Minimum Cutting Diameter: Approx. 24mm / 0.9in Features: Double cutter head, 360 adjustable Adaptation Speed: 1500-3000RPM Step Drill Diameter: Approx. 4mm / 0.16in, 6mm / 0.24in, 8mm / 0.31in, 10mm / 0.39in, 12mm / 0.47in Cutter Shank Diameter: 1/4in Maximum Cutting Thickness: Iron and Steel Plate: 1.8mm Stainless Steel Plate: 1.2mm Copper and Aluminum Plate: 2mm Plastic and Fiberglass: 2mm Package List 1 x Sheet Metal Cutter 1 x Handle 1 x Cutter Round Rod 1 x Cutter Round Rod Holder 1 x Wrench 1 x Step Drill 3 x Cutting Auxiliary Accessories 1 x Toolbox 1 x User Manual 1. Before using the tool, please tighten any screws.2. Do not start the operation before the motor is running. Keep the cutting head at a right angle to the sheet.3. During the operation, when the motor is still running stably, please release the cutter head.4. Please use special tool head cooling oil during operation, especially when cutting copper or aluminum.5. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1[FOR DIFFERENT SHAPES] Double headed metal cutter kit, which can be used for different shape cutting projects such as round or straight cutting. 2[360 POSITIONING] The cutting head can be positioned 360, without any burrs on the cutting edge, and the material will not be deformed. 3[ROTATION SPEED RANGE] The tool is powered by electric drill or air drill, with a suitable speed of 15003000RPM, which is efficient and durable. 4[WIDE APPLICATIONS] This kit is ideal for auto and home repairs such as metal roof cutting, HVAC vent ducts and other sheet metal cutting. 5[CUTTING MATERIALS] Equipped with drilling tools, suitable for cutting iron, stainless steel, copper and aluminum sheets and plastic materials.