[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, Weight: 1.56969130544 pounds, Manufacturer: Zambuph