& nbsp; Save Effort : Bolt Remover removes broken or damaged screws, bolts and fasteners effortlessly, improving work efficiency Advantage : The screw extractor is made of high quality materials, the overall heat treatment is strong and durable, practical and efficient, and durable enough, black oxidation treatment, durable & nbsp; Package : Comes in storage box with 12 pieces: 6 pieces for screw extractors (4.0mm / 4.5mm / 6.5mm / 7.5mm / 11.0mm / 15 mm) and 6 other parts for drills (3/32 " , 1/8 " , 3/16 " , 1/4 " , 5/16 " , 3/8 “). Very practical and convenient to set up all these tools and carry them everywhere. & nbsp; Application : Suitable for removing all available terms such as bolts, screws and stud with diameter ranging from 4mm to 25mm. & nbsp; Necessity : Whether you are a professional or a hobbyist, you can all keep such a set of tools at home when needed. Features: Remove broken or damaged screws, bolts and fasteners without any effort.Suitable for removing all