3Pcs Drill Bit Extender, Hex Shank Quick Change Bit Holder, Magnetic Socket Screwdriver Bit Holder Nuts, Drill, Driver, Bit Set

Overview[High Quality] Made of Chrome Vanadium steel (CR-V), heat treated high hardness, wear resistance, durable and long service life [Secured Bit Holder] Built in strong permanent magnet(the hole part), shaft holds bit securely, great for working with hard to reach screws [Easy To Use] 1/4" Hex shank quick change and adjustable collar, one hand operation, fit most common drill chucks and tools [Length] Including 2.5", 4", 6"(60mm/ 100mm /150mm), 3pcs meet your various needs, small and portable magnetic bit holder extension set [Wide Usage] This magnetic bit holder is great for extending all kinds of screwdriver bits, drills, converts any variable-speed drill into a power screwdriver