6pcs 1/4 inch Hex Shank Aluminum Alloy Screwdriver Bits Holder Light-Weight Quick-Change Extension Bar Keychain Drill Screw Make sure this fits by entering your model number. Application ForUniversal 1/4inch quick hex shank and 1/4inch hex socket keep different commonly used 1/4 bits handy. Fit most electric drivers, hand-held drivers and bits, like t25 and t20 bits etc. DurableThe drill bit socket adapters are made of aluminum alloy, nice durability, lightweight, sturdy, which ensure their longevity. Large LoadThe 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. Way of workingThis bits holder keychain have a ball bearing detent to hold the bits, they work like a slide or snap lock. Which makes it easier to change the bit with one hand. color6color. size6*1.5cm.(L*W). WEIGHT:88G.pack*1pcs.