✦ Impact and extractor screwdriver made by high quality 　 material and durable ABS handle.Its patent back 　 adjustable wheel design helps raising working power 　 and efficiency. Features: ✦ For Normal,Rusty,Covered,Damaged screw using. ✦ Blade : CR-MO steel ✦ Handle : ABS grip ✦ Go-Through Screwdriver ✦ Patent and Made in Taiwan.