External threading on plastic pipes, every single time Dual-Function Threading:Create both internal and external threads with one tool — no need to switch. Choose the size that fits your job: 1/2" or 3/4". Perfect for fast, accurate pipe prep.Compatibility:Works seamlessly with PPR, PVC, plastic, and MPP pipes — ideal for plumbing repairs, DIY upgrades, and electrical conduit installations.Heavy-Duty Alloy Build:Crafted from high-hardness 40Cr alloy steel for long-lasting sharpness, high concentricity, and stable threading without slippage or deviation.Sharp cutting edges produce precise threads that fit tightly — reducing leaks, improving flow, and saving you time on rework. How To Use : Nominal Diameter Inch Size PPR Pipe Outer Diameter Steel Pipe Outer Diameter (BSPT) Copper Pipe Outer Diameter DN15 1/2" 20 mm 21.3 mm ≈15.88 mm DN20 3/4" 25 mm 26.9 mm ≈22.22 mm Ready to upgrade your plumbing game? Order now and see how effortless, precision threading can transform every project! Don't wait a moment longer! Due to limited availability and high demand, they won't be around for much longer. Click “Add to cart” now and save 50% on our PipeTwist™.