Steel Construction: Constructed from high-quality steel, these bit holders are built to resist wear and endure the rigors of both professional and home use, maintaining their functionality over many years. Universal 1/4 Inch Hex Shank: Compatible with a wide range of drill and driver models, these bit holders feature a 1/4 inch Allen shank, making them a versatile addition to any tool kit. Magnetic Bit Holders:bit holders your bits are held firmly in place, providing stability and in all your drilling and driving operations, whether in tight spaces or on overhead tasks. Quick-Change & Secure Grip: Featuring a reliable quick-change design, these bit holders allow for swift and secure bit exchanges, enhancing your efficiency and reducing downtime during tasks. Convenient Keychain Access: Designed to be compact and easy to carry, each bit holder includes a keychain option, ensuring your bits are always within reach when needed during construction or DIY projects., Weight: 0.17857443222 pounds, Manufacturer: Yoeruers