High Efficiency Zit-R6 Automatic Electric Round Steel Pipe Rod Bolt Threader Tool 2 1/2" - 6". High Efficiency Operation: Automated threading process with constant force and automatic oil cooling for fast pipe installation. Wide Working Range: ZIT-R6 model handles pipe threads from 2 1/2 inches to 6 inches with heavy-duty capability. Quick-Open Die Head: Features a quick-open die head design for easy adjustment and automatic opening upon completion. Industrial Grade Build: Constructed with alloy steel and tool steel dies for durability in industrial steel pipe applications. Complete Accessory Kit: Includes dies for multiple sizes, oil bottle, screwdriver, and 4-leg stand for ZIT-R6 model. CE Certified Product: Meets international safety standards with CE certification for global market compliance. Flexible Customization: Offers full customization, minor customization, and flexible customization options from samples or designs. Fast Lead Time: Average lead time within 15 workdays for both peak and off-peak seasons.