Permanent Substancemail: Constructed of excellent heat dealt search engine speed steel, this drill extension set ensures permanent strength and durability, making it ideal for both household and professional use Flexible Length Preferencesecond: Includes four flexible lengths (2 3/8 in, Two hundred, 6 in, 12 inches), offering the excellent answer for any job, from cottage repairs to complex professional drilling otherwise screwdriving Attractive Stability: Features a powerful constructed in magnet and sphere hook structure to safely hold drill divisions, allowing fast bit modifications while ensuring precise and stable execution for every task Global Agreement: Developed with a standard 1/4 inch spell leg, this extension set works seamlessly with all 1/4 inch spell drill divisions, providing unequaled flexibility for wrenches, exercises, and other tools Aluminum Sleeve Planumberebog: The innovative aluminum sleeve furnishes extra stability and control, facilitating strong tasks lacking compromising motion, Manufacturer: Fcnjsao