Features: Brand new and high quality Made of high hardness material can create more extraction possibilities for broken screws or bolts of different sizes and can work on irregular and jagged irregular cuts. Against rust and corrosion, is flexible and durable. The notches on extractor bit produce greater force for bolts that are difficult to remove. It meets various needs. The extension bit holder and the socket adapter of the screw removal set fit most electric drills. The stripped screw extractor set is included two extension bit holder. Can remove in step, do not need to conversion extractor or adjust the chuck. The product needstobe installed in the socket adapter first, and then attach it to the extension bit holder, universal chuck that suitable for most electric hand drills. Specifications: Material:Stainless steel Weight:172g Conversion connecting rod:25mm/60mm Packing size: Approx.13x10x3.5cm/5.11x3.93x1.37inches Package Includes: 22x Damaged Screw Extractor note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.