【HIGH-PERFORMANCE BOLT EXTRACTOR】: Removing broken or damaged screws, bolts and fasteners effortlessly. The extractor can easily and quickly remove broken or rusted screws, bolts and studs. 【PRACTICAL BROKEN SCREW EXTRACTOR】: Suitable for removing all available terms such as bolts, screws and studs with diameters ranging from 4 mm to 25 mm. Simple and reliable in general applications. 【PORTABLE SCREW DRILL EXTRACTOR KIT】: Comes in a storage box with 12 pieces: 6 pieces for screw extractors and another 6 pieces for drills. Very convenient and practical to set up all these tools and carry them everywhere 【HIGH QUALITY SCREW EXTRACTOR SET】: This broken screw extractor kit is made of high quality material, durable enough for long-term use. These extractors will remove most types of damaged, stripped, rusted, broken or stuck screws