Features Convert your electric hammer into a power drill with the adapter, expanding the functionality of your tools for versatile use. Securely hold a wide range of twist drills with the classic keyed 3-jaw design, ensuring convenience and stability during drilling tasks. Enjoy a clamping range of 1.5-1m and 1/2-20UNF mounting threads, providing flexibility and compatibility with various drill sizes and types. Experience superior gripping with the specialized anti-th bearing, efficiently converting key-applied for enhanced performance. Benefit from specially treated clamping jaws, offering improved wear resistance for long-lasting durability and reliability. Features: 1、The adapter allows this drill chuck to mount on electric hammer so as to convert electric hammer into a power drill. 2、Classic keyed 3？jaw design securely holds a wide range of twist drills conveniently. 3、1.5？1m drill chuck clamping range, 1/2？20UNF mounting threads at the back of the chuck. 4、By using specialized anti？th bearing to convert key？applied into superior gripping. 5、The clamping jaws are specially treated to improve wear resistance. Specification: Features: The adapter allows this drill chuck to mount on electric hammer so as to convert electric hammer into a power drill. Classic keyed 3-jaw design securely holds a wide range of twist drills conveniently. 1.5-1m drill chuck clamping range, 1/2-20UNF mounting threads at the back of the chuck. By using specialized anti-th bearing to convert key-applied into superior gripping. The clamping jaws are specially treated to improve wear resistance. All metal construction for long durability. Specification: Material: Steel Clamping Range: 1.5-1m Mounting thread: 1/2-20UNF Package list: 1 x Drill Chuck 1 x Key 1 x Square Shank Adapter Package List