Contains 4 different most useful tools for installing air screwdrivers, electric screwdrivers, air drills, hand screwdrivers and other hex tool installations. 105 degree angled extension for use in hard-to-reach places. 1/4 inch hex drive shaft attaches to the drill bit, quickly replaces and fits most drill and screwdriver chucks. 3-piece hex screwdriver extension set is designed to meet a variety of needs. Fits firmly and securely into the chuck or hand screwdriver. Includes the most common drill bit sizes of 1/4", 3/8" and 1/2" with interchangeable shank sizes. Providing versatility and convenience no matter what tool you choose to use. Drill Bit Holder - 1/4 inch Hex Shank, Magnetic Extension Chuck Adapter, 60mm/100mm/150mm Length, suitable for electric, pneumatic and other power tools screwdrivers and extension drill bits. Insert the impact socket/socket wrench/screwdriver bit socket/screwdriver socket into the cordless power supply. Flexible Shank Drill Bit Extension - Length: