The Integrated Internal & External Pipe Threading Tool for flawless internal and external threading on plastic pipes, every single time.Specifications:Type: Pipe Thread Cutting ToolCompatible Sizes: 1/2", ¾"Material: 40Cr Alloy Steel Powder MetallurgyCompatibility: Electric drill compatibleApplicable Pipe Types: PVC, PPR, Plastic, MPPApplication: Internal & external threading, pipe sizes rethreadingSIZES:Nominal Diameter Inch Size PPR Pipe Outer Diameter Steel Pipe Outer Diameter (BSPT) Copper Pipe Outer DiameterDN15 1/2" 20 mm 21.3 mm ≈15.88 mmDN20 3/4" 25 mm 26.9 mm ≈22.22 mmWarm Notes:1. Please Allow Slight Size Errors Due to Manual Measurement.2. Due to Differences Between Monitor Displays, Actual Color May Vary Slightly from Image.Thanks for Your Understanding.3. If You Have Any Questions, Please Get in Touch with Us at Any Time, We Will Provide You with Best Solution.