engineered extractors allow tool setup and removal within 30 seconds, saving time and improving efficiency for professional handling frequent tool changes Features 6 twist drills ( 57mm-124mm) for accurate hole drilling, enhancing efficiency when dealing with deeping or complex brokend screw scenarios This bolt extractor set 50% high tensile strength to withstand extreme conditions without breaking or deforming, ideal for automotive repair and industrial maintenance Comes with a sturdy storage box for organized tool management, reducing search time by 20% and ensuring easy transport to workshops or job sites Includes 26 pieces with sizes ranging from 2.5Mm to 19mm, covering various nut and brokend bolts for versatile use in machinery, home repairs, and DIYer projects, Manufacturer: ZBIianxer