Features: This double purpose pipes threaders set (DN15 & DN20) features integrated internal/external threading for 1/2" and 3/4" pipes, crafted from wear resistant carbon steel for professional grades durability. Universal hex shank design ensures unseamed compatibility with hand drills, enabling smooth threading operations even for new hand users with minimal effort. Ideal for plumbers and DIY enthusiasts seek reliable tool for household plumbing repairs or commercial installation projects. Perfect for creating watertight connection in residential bathrooms, kitchen renovations, and industrial grades piping systems requiring precise threading. convenient carbon steel tap and die set combines portability with stable performances, maintaining cutting accuracy through repeated use in demanding workshop environment. Specifications: Component:Carbon Steel DN15 Model (1/2") Size:Approx.26x45mm/1.02x1.77inches DN20 Model (3/4") Size:Approx.33x45mm/1.3x1.77inches Package Includes: 2Pcs/Set Integrated Wire Opener Inside and Outside of Water pipes (DN15+DN20) note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.