Item Type: Garden drill adapter_x000D_Material: Carbon steel_x000D_Weight: Approx. 296g / 10. 4oz_x000D_Total Length: 10. 4cm / 4. 1in_x000D_Bit Length: 4. 3cm / 1. 7in_x000D_Diameter: 2cm / 0. 77in 1COMPATIBLE AND VERSATILE: Easily connect a 10mm diameter round shank to a 1/2 inch threaded adapter for drill chuck, expanding your drilling options for different applications. 2RELIABLE AND EFFICIENT: This adapter allows you to effortlessly connect your drill machine to a ground drill, ensuring a secure and precise connection for efficient drilling. 3SECURE CONNECTION: For added safety and stability during reverse motion, you can apply thread lock adhesive on the screw that holds the two parts together to ensure a reliable connection. 4EXPAND YOUR CAPABILITIES: By connecting this adapter to a drill bit, you'll have a versatile tool with 3 interchangeable drill bits, perfect for tackling various garden drilling tasks with ease. 5PERFECT SIZE: With a total length of 4. 1 inches and a main body diameter of 3/4 inches, this adapter is compact yet sturdy, making it easy to handle, store and use.