Double Function Design: This faucet tap die set features integrated internal and external threading tools, perfect for creating both inner and outer threads on pipes Includes 1 / 2 " and 3 / 4 " sizes to accommodate different piping needs Premium Alloy Steel Construction: Crafted from high strength alloy steel for enhanced wear resistance and resistance, guaranteeing durability in demanding working conditions Hexagonal Shank Compatibility: Designed with a universally hexagonal shank for seamless attachment to power drills, ensuring smooth threading operations and user friendly even for beginners Compact & Portable: Lightweight (92g for 1 / 2 ", 84g for 3 / 4 ") and compact for easy transport, making it ideal for both home use and professional job Wide Application: Suitable for pipe installation and repairs in residential and commercial settings, serving as an essential tool for plumbers and DIYer enthusiasts, Manufacturer: SHINLHUA