【Superior Tool】Six-color drill bit storage holder set with key ring, meet your daily needs 【Comfortable Operation】6-piece screwdriver bit holder set, smooth surface, removable socket, 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 bar equipped with a black metal key ring, can be hung on the waist or on a backpack, easy to carry 【Wide Range of Uses】The drill bit extension holder, can quickly store and transport 1/4 inch hex shank drill and screwdriver bits 【Operation Mode】This bit holder The key ring features a ball lock to hold the bits in place, working as a slide or quick-lock system. This makes it easy to change the bit with one hand. 【Durability】The drill bit socket adapters are made of aluminum alloy, they are durable, lightweight and strong, ensuring their longevity.