This 1/4 Hex Shank Quick Release Screwdriver Magnetic Bit Holder with Adjustable Collar Extension Bar 150mm combines reach, speed, and reliability for fastening tasks in confined spaces. It is designed to work with standard 1/4 inch hex bits and drivers, providing a practical solution for professional and DIY use. Key benefits Quickrelease bit change: fast, tool bit swaps to keep your workflow moving. Magnetic bit holder: securely retain bits and screws to reduce drops and lost fasteners. Adjustable collar extension: versatile reach with an adjustable collar to suit different applications and depths. Long extension for tight spaces: 150 mm extension bar gives you access to screws that are otherwise difficult to reach. 1/4 inch hex shank compatibility: compatible with most screwdrivers and power tools that accept 1/4' hex bits. Key attributes Functionality: quick release, magnetic retention, and adjustable collar extension for flexible use. Compatibility: accepts standard 1/4' hex bits and works with tools that have a 1/4' hex shank. Size: extension bar length of 150 mm; 1/4' hex shank. Material: metal construction. Performance: reliable magnetic retention and smooth, rapid bit changes for efficient work. Use cases Cabinetry and furniture assembly: reach recessed screws and change bits quickly without removing the driver. Automotive interiors and appliance maintenance: access screws in tight panels and tight spaces with extended reach. General mechanical or electrical installations: perform fastening tasks in confined areas where a standard screwdriver cannot reach. This accessory provides a practical balance of reach, speed, and secure bit retention, helping you complete fastening tasks more efficiently while maintaining control and accuracy.