Features: Enhances your toolkit with a versatile 3 piece set of hexagonal quick releases locking extension rods (60mm/100mm/150mm), crafted from premium steel for extreme durability and anti wear performances in heavy duty applications. Featuring innovative locking mechanism and rapid swap compatibility, these drill bit extension rods securely grip 1/4" hexagonal bits while enabling swifts accessory changes without additional tools. Designed for both DIYer enthusiasts and professional technicians tackling automotive repairs, furniture assembly, or precisions electrical work in confined spaces. Perfect for drilling, driving screws, or socket wrench tasks in workshops, construction site, and machinery maintenance scenarios requiring extended reach. Optimize workflow efficiency with this multi functional set, combining industrial grade corrosions resistance, ergonomic quick releases collars, and universally compatibility with power drills, impacts driver, and manual screwdrivers. Specifications: Component: Steel Length: 60mm/2.36'',100mm/3.94'',150mm/5.91'' Handle diameter: 6.35mm(1/4'') Package Includes: 3Pcs Screwdriver Bit Holder note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.