High Quality Socket Adapter: Each adapter is made of heat-treated chrome vanadium steel and is coated with manganese phosphate to resist rust and corrosion and ensure a long service life. Wide Application: Suitable for quickly changing 1/4 inch chuck systems or directly into drill chucks. Each cordless drill into a power groove driver. Convenient for quickly driving nuts, screws and fasteners, etc. The spring-loaded ball bearing on the head holds the sockets firmly. Compatibility: Suitable for power screwdrivers or drills, features 1/4" quick change chuck systems or directly into drill chucks. Change your hand tool socket sets into impact/drive sockets. Specifications: 3-piece 1/4" drive adapter, 3/8" drive adapter and 1/2" drive adapter and each with a 1/4 inch hex screwdriver socket wrench adapter set. So you can turn any drill into a power screwdriver with the extra reach. Specifications: 3-piece 1/4" drive adapter, 3/8" drive adapter and 1/2" drive adapter and each with a 1/4 inch hex screwdriver socket wrench adapter set. So you can turn any drill into a power screwdriver with the extra reach.