Features: <br>The adapter allows this drill chuck to mount on electric hammer so as to convert electric hammer into a power drill. <br>Classic keyed 3-jaw design securely holds a wide range of twist drills conveniently. <br>1.5-13mm drill chuck clamping range, 1/2-20UNF mounting threads at the back of the chuck. <br>By using specialized anti-thrust bearing to convert key-applied torque into superior gripping. <br>The clamping jaws are specially treated to improve wear resistance. <br>All metal construction for long durability. <br> <br> <br>Specification: <br>Material: Steel <br>Clamping Range: 1.5-13mm <br>Mounting thread: 1/2-20UNF <br> <br>Package list: <br>1 x Drill Chuck <br>1 x Key <br>1 x Square Shank Adapter<br>1、The adapter allows this drill chuck to mount on electric hammer so as to convert electric hammer into a power drill. <br>2、Classic keyed 3?jaw design securely holds a wide range of twist drills conveniently. <br>3、1.5?13mm drill chuck clamping range, 1/2?20UNF mounting threads at the back of the chuck. <br>4、By using specialized anti?thrust bearing to convert key?applied torque into superior gripping. <br>5、The clamping jaws are specially treated to improve wear resistance.