1. All-In-One ConvenienceComprehensive 112 pcs impact driver bit set includes a wide variety of drill bits and driver bits as well as kinds of sockets and bit holders to help assist in a number of drilling and fastening applications such as wood, metal, masonry and more. 2. Hex Shank & Quick Change1/4" hex drill and driver bit set fits well for fast and easy bit changes and no drill bit spin out. Compatible with 1/4 inches impact drivers, screwdrivers/screw guns and 3/8 inches or 1/2 inches drill/drivers. 3. Premium High QualityThe included screwdriver bit set feature designs and higher-grade material to lessen damage to the screw head and provide better bit-gripping power. Drill bits made from superior HSS material are titanium coated for long-lasting strength and durability. 4. Portable & Well StoragedComes with a tough transparency case for secure storage, easy access, organizing and portability. Also with sponge cushion between the upper and lower halves to keep the bits from getting scattered around everywhere after repeated use.