Features: Concentrated Planumberebog: Specifically developed for firefighting conduits and metal mechanical blouses, ensuring precise and professional hole cutting. Galvanized Substancemail: Produced from excellent galvanized steel, offering excellent oxidation resistance and durability for extended use. Efficient Drill Divisionsecond: Hard wearing high execution drill divisions that quickly pervade various thicknesses of steel conduits, enhancing work efficiency. Finish Sand: Includes multiple measurements of drill divisions and tools, providing to different hole cutting demands and flexible field operations. More distinct Direct current Operatemail: Features a ergonomic plan with a comfortable handle for easy control, reducing labor intensity and ensuring security during action. Specifications: Substancemail: Metal Sizemail: 118mm Use circumstancesecond: Twelve hundred flame security, HVAC, air conditioning and other sectors, meet a variety of engineering demands and have strong applicability. Package Includes: 1xHole opener 1xConnector note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.