Feature: 1. COMPATIBLE 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. 2. RELIABLE 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. 3. SECURE 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. 4. EXPAND 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. 5. PERFECT 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. Specification: .Item Type: Garden drill adapter Material: Carbon steel Weight: Approx. 296g / 10.4oz Total Length: 10.4cm / 4.1in Bit Length: 4.3cm / 1.7in Diameter: 2cm / 0.77in Package List: 1 x Drill Adapter3 x Drill Bit