General description The 6 Pack 1/4 Inch Hex Shank Aluminum Lightweight Quick Change Bit Holder is a versatile and portable tool designed for convenience. It features a keychain key ring and comes with a black carabiner for easy attachment. Technical specifications Material: Aluminum alloy Shank size: 1/4 inch hex Compatibility: Works with various commonly used 1/4 inch drill bits Usage Compatible with most electric screwdrivers, screwdrivers, and hand drills Suitable for T25 and T20 drill bits Other information Designed with a ball bearing for secure bit holding Allows for easy one-handed bit changes with sliding or snap lock mechanism