Check the listing for details. 6Pcs 1/4" Hex Shank Quick Release Drill Bits Keychain Aluminum Alloy qw. Condition: New. Listed at 7.00 USD. Material: Aluminum alloyFunction:Bits are quickly clamped or changed, the removable bushing bit holder can instead of carrying around large boxes that bits commonly fit into. To make it easy to remove and reattach to the quick connect. It can prevent accidental dropping of tools and facilitate high-altitude operations.Application: Universal 1/4 inch quick hex shank and 1/4 inch hex socket keep different commonly used 1/4 drill bits close at hand. Fits most electric drivers, hand drivers and bits, such as t25 and t20 drill bits, etc. Make sure this fits by entering your model number.Large Load: The powerful ball lock buckle of the bit holder can carry bit tools up to 500g in weight. To keep the bits from falling off easily.Keychain Holder: 6 extension bars come with a keychain buckle, which can be easily installed on chain buckles. Compact and portable, easy to carry. Durable: The bit socket adapters are made of aluminum alloy, good durability, lightweight, sturdy, ensuring its longevity.Higher Efficiency: Thanks to the smooth surface processing and removable bushing, it can prevent accidental tool drops and facilitate high-altitude operations. It can be equipped with a short drill bit or a long drill bit. Easy to use: The keychain has a flat, thick and round design, which makes it easier to take the extension bar and change the bit with one hand.