Features: Experience rapid tool changes with our quickly release extension rod featuring double position steel ball and spring loaded mechanisms, compatible for most hammer drill accessories and designed for instantly locking/release of round shank bits. The reversible double ended round shank eliminates orientation hassles during installation, while the high carbon steel collet ensures superior tensile strength and the shaft withstands high torques operations. Ideal for professional electricians, construction workers, and enthusiasts requiring reliability power tool accessories for drills, or pneumatic tools. Perfect for drilling, screwdriving, or fastening tasks in workshops, construction sites, or home renovation projects using compatible rotary hammer bits and adapters. Engineered for durability and universally compatibility, this extension rod seamlessly integrates with standard round shank accessories (excluding five-slot round handle), delivering precise and stability across repetitive heavy duty applications. Specifications: Component: High Carbon Steel Plug Connector+Steel Extension Rod Plug Connector Size: Approx.96x21mm/3.78x0.82inch Extension Rod Length:Approx.260mm/10.23inch Suitablefor most round-handle drills on market (except five-slot round handles) Package Includes: 1pc Plug Connector 1pc Extension Rod note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.