Inculde 4 different most useful tools, used in the installation of air screwdriver, electric screwdriver, air drill, manual screwdriver and other installation for the hex toolCorner extender of 105 degrees that you can use in places you have trouble getting to. Great wrench tools and can be connected to the drill bit. The 1/4 inch hex drive shaft is quick-change and s fits most power drills and driver chuacks.The 3 Piece Hex Bit Driver Extension Bar Set is designed to meet a variety of needs. Fits snugly and securely in your drill chuck or hand screwdriver. Comprised of your most common bit sizes 1/4", 3/8" and 1/2" changing shank sizes. Provides versatility and convenience no matter what tool you choose to use.Drill Holders-1/4 Inch Hex Shank, Magnetic Extension Chuck Adapter, - 60mm / 100mm / 150mm in length, suitable for electric, pneumatic screwdrivers and other power tool screwdriver bits, extended drill. Connect impact sockets / socket wrenches / bit sockets / driver sockets to cordless power. Material: is CR-V (chrome vanadium steel).Shaft Drill Extension hose - Length: 29cm/11.42" (Approx); Hex Shank: 6.35mm (1/4"); Inner hex head: 6.35mm (1/4"); Features: for electronic drill, connection link, flexible Screwdriver socket adapterWeight: black 95g / silver 95g.Specifications: 1/2" (12.7 mm), 3/8" (9.5 mm), 1/4" (6.35 mm).Diameter of the stem : 6.35mm Hex Handle, Double D Groove.1/4 Hex Drill Extension< /p> Length: 60mm, 100mm, 150mm.Weight: 60mm (25g), 100mm (32g), 150mm (40g).Features: The interface has a locking mechanism and a strong built-in magnet. Suitable for the transfer of electric drills, screwdrivers and pneumatic screwdrivers, and expands the conversion of various bit and screwdriver heads. Hex shank diameter is 1/4" (6.35mm). The inner hexagon has strong magnetism.7-19mm universal socketWeight: 150 g.Use: 7-19mm - Suitable for all triangular, square, hex, Torx - wing nuts, set screws and metal rings as well as all other multi-point nuts.< b>105 angle screwdriver bitWeight: Length : 158g / short: 96 g.Features: The quick coupling handle is suitable for all electric drills and socket wrenches. The function head is equipped with locking and magnetic devices that prevent the base from falling. Plugs into standard 1/4 hex bits.360 degree rotation, 180 degree rotation< /p> Suitable for small wrenches / hand drills with adjustable speed / small amounts of torque - Speed should not be too high - Too much torque will cause more flexible bit holders to break.Flexible screw bit holder.Length: 295 mm.Weight: 78 g.6.35 mm (1/4) hex handle - The size of the hex part of the connection tip is of 6.35mm (1/4).Note: The data is manual measurement, please allow 1-132cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.