Features: *Material:Made from high-quality chromium-vanadium steel, this ground bar controller is highly resistant to breakage, providing durability and longevity. *-Resistant Design:Specifically engineered to withstand the of hand hammers, reliable performance during installation of the ground rod. *Easy Installation:With its square handle, this ground bar controller is suitable for use with electric hammers and powerful hammers, making the installation process easier and more efficient. *Long-lasting Performance:Thanks to its high hardness and resistance to breakage, this ground bar controller eliminates the need for frequent replacements, saving your effort. *Reliable Compatibility:Designed to fit standard ground rods, this ground bar controller offers compatibility, making it a versatile tool for various applications. Specifications: *Product Name:Ground Bar Controller *Material:Chromium-vanadiumSteel *Size:Approx.M8,M10,,M13, for M14,M15,,M20 *Inner Diameter:About8-20 mm *Total Length:About 141-180 mm *Sleeve Depth:About 62-85 mm *Color:Silver *Applications:ForGroundStake Hammers Package Content: 1*GroundBar Controller Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. [HIGHLY RESISTANT MATERIAL] Made from chromium vanadium steel, this ground rod driver boasts impressive durability and resistance to breakage, making it a reliable tool for any job. [IMPACT-RESISTANT DESIGN] Built to endure the force of hand hammers, this tool provides consistent performance when installing ground rods, peace of mind during use. [EASY TO USE HANDLE] The square handle design allows compatibility with electric hammers and powerful hammers, enhancing ease of installation for both professionals and DIY enthusiasts. [ PERFORMANCE] Thanks to its exceptional hardness and resistance to damage, you can count on this tool to last through multiple projects without the hassle of replacements. [ APPLICATIONS] This ground rod driver is designed to work with standard ground rods, making it an essential addition to your toolkit for various applications.