Description: Material: Made of high-speed steel material, this electric hammer water converter ensures durability and long term performance even under rigorous use.Thread Size: With a thread size of M22, the adapter guarantees a secure fit and stable connection for efficient drilling operations.Easy Installation: The Connecting Rod is designed for easy installation, making it user-friendly even for the less experienced DIY enthusiasts. Practical: This connecting rod is designed to be suitable for most electric hammer water drill, offering a versatile solution for your drill needs. A water drill machine can complete the function of electric hammer and water drill, very practical.Muitipurpose: The adding water connecting rod allows your electric hammer to be transform into a water drill machine, realizing a variety of work requirements. Specification: Material:High Speed Steel Size Chart: 16.5cmx17.5cm/6.50inchx6.89inch Package Includes: 1 PieceElectric Hammer Water Converter Note: Please allow slightly errors 1-2cm differences due to manual measurement.