Hey there, DIYers and pros! Tired of digging through a messy toolbox for the right bit? This 12-piece set is your new best friend. You get 10 aluminum alloy quick-change bit holders and 2 black carabiners to keep them all together. These little guys snap onto any standard 1/4-inch hex shank screwdriver or drill bit, turning them into a neat, easy-to-grab extension bar. The collar slides to lock and release the bit with one hand – super simple. They can hold up to 500g (over 1 lb) and have a 360-degree rotating head so you can get into tight spots without twisting your wrist. Made from rust-proof aluminum and stainless steel, they're tough but lightweight. Clip the carabiner to your belt loop, tool bag, or keychain, and you've got your most-used bits always within reach. Perfect for electricians, mechanics, carpenters, or anyone who likes to keep their workspace organized. No more lost bits at the bottom of the bag!