Sheet Metal Hole Punch 7/8" Circle Hole Puncher Tool Set With Hex Head Screw

Punching Diameter: 7/8""; Max. Outer Diameter: 30mm / 1.18"; Total Length: 47mm / 1.85"; Screw Thread Size: M10*1 (Dia x Pitch); Screw Thread Length: 40mm / 1.57;; Hardness: HRC58-62; Punching Hole Type: Round The anti-slip spiral interface design of the punching die makes the connection more secure. This manual metal punch is designed for precision and efficiency. Using a wrench to turn the hex head screw, the screw will pull the punch through the metal, thus creating a hole. Before drilling, round holes need to be pre-drilled in the plate so that the screw can pass through the plate. This punching die is suitable for cutting materials such as stainless steel, carbon steel, copper, aluminum, brass, and plastics. (The cutting thickness for stainless steel plates is 1.5mm; the thickness for carbon steel plates, aluminum plates, copper plates, and plastic plates is 3mm.) The manual punch works well even in confined spaces. Using a wrench to turn the hex head screw, the screw will pull the punch through the metal, thus creating a hole. Before drilling, round holes need to be pre-drilled in the plate so that the screw can pass through the plate. When operating the sheet metal punch, always ensure that your fingers and hands are kept away from the punching area to avoid getting hurt. Use clamps or vises to firmly hold the sheet metal in place to prevent movement during punching, thus ensuring accuracy and safety.