[Function] --- Bits hold/quick change, The Pull-out bushing bits holder can instead of carting around boxes that bits commonly come in. To easy to remove and place back on the quick connect. Can avoid accidental dropping of tools and facilitate high-altitude operations.[Application] --- Universal 1/4 inch quick hex and 1/4 inch hex socket keep different commonly used 1/4 bits . Fit most electric drivers, hand- drivers and bits, like t25 and t20 bits etc. Make this fits by entering your model number.[ Load] --- The powerful ball lock buckle of bits holder can carry bits tools up to 500g in weight. To keep the drill bits not easy to fall.[Keychain Bit Holder] --- 6PCS Extension Bar comes with a keychain buckle, which can be to install on chain buckles. and portable, easy to carry around. [Durable] The drill bit socket adapters are made of aluminum , durability, lightweight, sturdy, which their .[Higher Efficiency] --- Thanks to the surface processing and pull-out bushing, can avoid accidental dropping of tools and facilitate high-altitude operations. It can be fitted with a short bit or a long bit. [Easy to Use] --- Keychain has a flat, thick and round design, which makes it easier to take the Extension Bar and change the bit with one hand.Colour:Photo ColorMaterial:aluminum Package Contents:6X Bits holdOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.