Adjustable Triple Design : expandable front teeth with 15.5Mm expansion for 12mm model and 17.5Mm for 14mm model, adapting to various break, or rusted faucet without tool changes. Durability 45#Steel Construction : from high hardness steel for super toughness, deformation and chipping even under high torques, ideal for stubborn rusted threads. Efficient Extractions Without Pipe Damage : Three jaw gripping mechanism securely holds break threads for smooth reverse rotation removal, protecting pipe thread from harm. MultiScenario Application : Effectively removes break thread from faucets and angles , perfect for plumbing repairs, bathroom installations, and old pipe renovations. Complete 2Piece Set : Includes L shaped hexagonal and sealing washers for immediate use, suitable for both professional and beginners tackling thread extractions tasks.