13mm 1/2 "UNF drill chuck SDS Plus shank adapter socket hexagon square converter fit impact hammer impact wrench screwdriver 4 in 1Feature:Classic three-jaw design with key, quick change and easy locking.Easily and safely install a wide variety of 2--13mm shank drills.Unique patented locking feature that can be easily tightened with one hand and breaks traditional locking methods.Easily turn your routine hammer / impact wrench / impact wrench into a drill bit instead of spending money on multiple tools. Also turns the impact wrench to also perform drilling functions.Specification: Capacity: 2-13mm Thread mounting: 1 / 2-20 UNF (2-13 mm) Shank Type: 3/8 "SDS Plus; 1/2" Socket Square Converter; 1/4 "hex shank Color: Black Material: carbon steel and plasticNOTE:The product CANNOT be used counterclockwise! NOT suitable for impact wrenches or high torque applications.Package includes:1 * 1/2 "Socket Square Converter1 * 3/8 "SDS Plus shaft1 * 1/4 "hex shank1 * 2-13 mm drill chuckNote:1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.