3PCS Impact Grade Socket Adapter/Extension Set Turns Variety pack, Black\nDescription\n\nFeatures:\n--Material: universal sleeve connecting rod is made of tool steel, which ensures long service life in difficult torque operation and will not damage or rust heavy structure\n--The impact-grade socket adapter kit includes a set of 3 adapters: 1/4 \""3/8\"" 1/2 \"", which converts any electric tool kit bit kit into a nut sleeve kit. The coding ring of different colors makes it easier for you to select the appropriate ring.\n--The impact drive socket adapter is compatible with all brands of electric drills. The spring-loaded stop ball design ensures that the adapter can work safely with 1/4 inch, 3/8 inch or 1/2 inch drive sockets.\n--These extension rods are connected to any electric or cordless drill chuck or impact drive to turn it into a high-speed nut drive.\n--Purpose: It is suitable for the maintenance of automobile machinery and vehicles, the development of technicians, miscellaneous.