【Superior Tool】Six color drill bit holder set with key ring, meet your daily needs. 【Convenient Operation】6pcs screwdriver bit holder set, smooth surface, detachable base, easy to hold with one hand 【Excellent Materials】Made of high quality aluminum alloy, excellent workmanship, durable, rust-proof and wear-resistant 【Practical Design】The extension rod is equipped with a black metal keychain, can be hung on the waist or backpack, easy to carry. 【Wide range of uses】The drill extension holder can be used to quickly store and transport 1/4 inch hex shank drill bits and screwdrivers 【Operation Mode】This keychain bit holder has a ball lock to keep the bits in place They work like a sliding or quick release system. This makes it easier to change the drill bit with one hand. 【Durability】The drill socket adapters are made of aluminum alloy, they are durable, lightweight and stable, which guarantees their longevity.