
【Purpose】: This adapter set serves as a secure extension for your existing tool. Provides additional length to reach a variety of hard-to-reach places. Spring ball lock ensures a tight fit in the driver head and prevents slipping during use. Specially machined to securely attach a hand screwdriver, drill driver or impact driver. 【PACKAGE INCLUDES】: 3pcs: 1/4", 3/8", 1/2", each with 1/4" hex wrench/screwdriver bits for all quick change drill chuck systems. Turns any electric drill into a conductive power nut. The robust, spring-loaded ball bearing holds the sockets securely in place. The sockets lock firmly into place and do not slip. 【Colorful】: Easy selection: Various color-coded rings, clear help to quickly select the right one. Our products are among the latest updates, the quality is super good. 【Usage】: Sits comfortably and securely in your drill chuck or hand screwdriver. Consisting of your most common bit sizes 1/4", 3/8" and 1/3" interchangeable shank sizes Provides