1. 【HIGH PERFORMANCE BOLT PULLERS】: Removing broken or damaged screws, bolts and fasteners effortlessly. The extractor can easily and quickly remove broken or rusted screws, bolts and studs 2. 【CONVENIENT BROKEN SCREW EXTRACTOR】: Suitable for removing all available terms such as bolts, screws and studs varying in diameter from 4mm to 25mm. Simple and reliable in general applications 3. 【PORTABLE SCREW DRILL EXTRACTOR KIT】: Comes in storage box with 12 pieces: 6 pieces for screw extractors and another 6 pieces for drills. Very practical and practical to set up all these tools and carry them everywhere 4. 【HIGH QUALITY SCREW EXTRACTOR SET】: This broken screw extractor kit is made of high quality material, durable enough for long term use. These pullers will remove most types of damaged, bare, rusted, broken or stuck screws 5. 【WIDE APPLICATION STUD REMOVAL KIT】: Whether you are a professional or a hobbyist, you can all keep such a set of tools at home in case the situation needs.