【Magnetic Bit Holder】Includes 5 pieces 60mm drywall bit (6.35mm), the quick change and release system allows you to quickly install, lock and unlock the drill. 【Strong Magnetic Bit Holder】Hex shank bit holder with built-in strong magnetism, quick fixing, effectively improving work efficiency. 【Well Made】The quick change bit holder is made of chrome vanadium steel with smooth surface, high temperature resistance, good wear resistance and very high hardness. 【Wide Application】The suction driver bit is suitable for impact wrenches, electric screwdrivers, hand screwdrivers, electric drills, pneumatic drills, etc. 【Easy Installation】To install the impact driver bit holder, simply Press down on the black sleeve of the quick-change drill bit holder magnet so that the hex head of the drill bit holder is exposed, insert the drill bit into the hex head, and the magnetic clamp will automatically clamp the bit.