Sheet Metal Hole Punch Manual Knockout Punch Cutting Tool Hexagon Hole Cutter 【Easy to Use】Sheet Metal Hole Punch Tool, professionally designed, you can just turn the screw with a wrench to pull out a hole in the metal 【Application】Sheet Metal Punch Hole Punch is suitable for cutting steel plates, stainless steel, sinks, steel plates, copper, aluminum, brass, and more 【Easy to use】Before drilling, you need to make a round hole in the plate so that the screw can pass through the plate 【Features】Hole Cutter Opener, high precision, meticulous workmanship,  great for a ratchet, wrench or electric driver 【Material】Hole Punch is made of steel material, which offers exceptional strength, toughness, and wear resistance Specification: Material: steel Size Chart:2.75cm/1.08inch Package Includes: 1 Sheet Metal Hole Punch Note: Please allow slightly errors due to manual measurement and different monitors.