Features: The double function pipe threading tool features integrated internal/external tapping for 1/2" and 3/4" pipe, offering various plumbing solution with two specifications. Crafted from high carbon steel with universal hexagonal shank compatibility, this tap ensures corrosion resistant performances and seamlessly power drill operation. Ideal for professional plumbers and DIYer enthusiasts seek efficient pipe installation tool for residential or commercial projects. Perfect for creating watertight connection during bathroom renovations, kitchen plumbing upgrades, or industrial piping system maintenance. Its combines workshop durability with jobsites portability, delivering precise threading performances across multiple pipe applications. Specifications: 4-point (1/2"): inner thread:21mm, outer thread:27mm 6-point (3/4"): inner thread:26.5mm, outer thread:32mm Component: Carbon Steel Suitable for: Electric drill Package Includes: 1 Set Threading Tool note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.