• SOCKET EXTENSION SET: Our drill extension and socket adapter set is the perfect multidriver kit for auto, mechanical, and construction jobs. This 9-piece adapter and extension bit set includes 1/4-inch, 3/8-inch, and 1/2-inch drives.

• FLEXIBLE & COMPATIBLE: This socket adapter drill-bit set turns power drills into high-speed nut drivers. Our drill-bits socket set is compatible with universal heavy-duty power tools, including drivers, hand wrenches, and screwdrivers.

• QUALITY METAL: Each adapter piece with the drill-bit extension is constructed with heat-treated chrome-vanadium steel to deliver long-lasting and durable strength for years of use. You can rely on this strong socket set to make light work of any job.

• SECURITY & DESIGN: The spring-loaded ball bearings fitted on each square head securely lock into the sockets to prevent slippage during use. Each ball bearing delivers high torque power accurately and efficiently every time.

• WHAT’S INCLUDED: This adapter set comes with four 1/4-inch, two 3/8-inch, and two 1/2-inch drives. It also includes 1 long magnetic bit extension that measures 60 mm and has a magnetic 1/4-inch bit end attachment.