Features The steel is quenched, has high hardness, toughness and strong wear resistance, easy to remove damaged screws Solve the problems of broken screws, silk threads, stuck screws, and rusty screws. Applicable to stainless steel 8.8-12.9 grade bolts, no need to worry about the screws and the tools are broken Complete tools, with a post extractor, which is more convenient to use Small size, easy to carry and store, convenient to use and with good performance Specification:Item Type: Headless Screw ExtractorSpecification: Material: High speed steel Color: Silver Type: Fine Teeth Quantity: 6Pcs/set (with post extractor) Post Extractor: Size: Approx. 18mm / 0.7in, 14mm / 0.6inTotal Length: Approx.60mm / 2.4inDepth: Approx. 6mm / 0.2inHeadless Screw:#1: Approx. 3 ~ 4mm / 0.1 ~ 0.2in  #2: Approx. 3 ~ 5mm / 0.1 ~ 0.2in #3: Approx. 4 ~ 6mm / 0.2 ~ 0.2in  #4: Approx. 5 ~ 7mm / 0.2 ~ 0.3in  #5: Approx. 7 ~ 10mm / 0.3 ~ 0.4in Package List:1 x Headless Screw Extractor Set Package List 1 x Headless Screw Extractor Set