【Keychain Bit Holder】6PCS Extension Bar comes with a keychain buckle, which can be easily to install on chain buckles. Compact and portable, easy to carry around. 【Durable & Strong】This Screwdriver Bits Holder Set is made of high quality aluminum alloy for higher hardness. The powerful ball lock buckle can carry tools up to 500g in weight. 【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. 【Higher Efficiency】Thanks to the smooth 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. 【Bit Holder for Drill】Fits for universal 1/4 inch hex shank and 1/4 inch hex socket fit most electric drivers, hand-held drivers and bits. Making this extension holder very handy and flexible!, Weight: 84.0 grams, Manufacturer: Saipor