About this item 

• 1.Durable material: these drill bit socket adapters are made of aluminum alloy, feature nice durability, lightweight, sturdy, which ensures their longevity. 
• 2.Easy Install:Large-diameter flat-mouth rings are easy to install on chain buckles. 
• 3.Thoughtful design: the cupped design of hex shank keychain extension bars are designed for your easy holding and convenient replacing another drill bit, which can offer you a pleasant using experience. 
• 4.Safety to Use:It can be carried with you to avoid accidental dropping of the hexagonal handle. It is easier to pick up the product and replace the drill bit you need with one hand, which helps to ensure the safety of high-altitude operations. 
• 5.Wide application : these hex shank keychains are suitable extension of most screwdriver bits; The universal 1/4-inch fast hex shank and 1/4-inch hex socket are compatible with a variety of electric screwdrivers, hand-held screwdrivers and drill bits.