This 8 piece Hex Shank Bit Driver Extension Set is designed to meet a variety of needs. Consisting of your most common bit sizes 1/4", 3/8", and 1/2" changing shank sizes.
FEATURES:
* Spring loaded ball bearing on head holds sockets securely
* This impact driver bit socket adapter set has 1/4" shank, fitting most quick-change chucks and drill chucks
* This socket adapter set is made of high quality chrome vanadium steel, heavy-duty, sturdy and durable, long service life ensured
* Socket bit adapters set is suitable for a screwdriver or electric screwdriver handle tools (hexagonal hole or three-jaw chuck) drive sleeve