Description This 1-inch square drive extension bar is designed for professional use, providing extra reach for your socket tools. It is manufactured from high-quality chrome vanadium steel, which is hardened and tempered for durability. The chrome plating offers corrosion resistance, ensuring long-lasting performance. The extension features a locking pin to securely hold sockets during use. Suitable for various DIY and home improvement tasks requiring extended reach. Technical Specifications Length: 400mm Drive size: 1 inch Material: Chrome vanadium steel Finish: Chrome plated for corrosion protection Standards: Manufactured to DIN 3123 Form B / ISO 3316 specifications Compatibility and Accessories Compatible with 1-inch drive sockets and ratchets Can be used with various socket accessories designed for 1-inch drive Installation Attach the extension bar to your socket or ratchet by aligning the drive ends and securing with the locking pin Ensure the locking pin is properly engaged for