Feature:1. [Adjustable Design] The punching diameter of this pneumatic hole punch is 6 to 7.5mm adjustable, suitable for 0.5 to 3mm sheet metal.2. [High Efficiency] With a working frequency of 180 times per minute, this air hole punch tool offers fast and efficient hole punching, saving time.3. [Rubber Handle] The pneumatic puncher features a rubber handle that provides a comfortable grip, very suitable for long term use.4. [Light and Compact] This hole puncher is lightweight and has a compact size, ideal for extended use without causing strain or discomfort to the user.5. [Versatile Applications] The pneumatic punching gun is perfect for home projects such as insulation, house wrapping, roofing, flooring, or interior decoration.Specification:Item Type: Pneumatic Hole PuncherMaterial: Aluminum alloyModel: DK7015Hit Frequency: 180 times per minuteInlet Connector: 1/4inAir Hose Outer Diameter: 8mm or moreAir Pressure Requirement: 5-8kgf/cmUse: Professional for punching aluminum plates, with controllable hole diameter 6-7.5, metal sheet thickness 0.5-3mm.Package List:1 x Pneumatic Hole Puncher2 x Hex Wrench1 x Oil Pot