Features Premium Material: Our tap extractor is made of high-quality high speed steel which can ensure the longevity and effectiveness in removing broken or stripped screws and bolts. Strong Performance: Each broken head screw remover is specifically engineered for speedy grab-it and easy out broken screw taps, every tap extractor goes through rigorous quality testing, durable to use. Easy to Remove: With this bolt extractor set, you can easily remove damaged fasteners without damaging the surrounding surface to avoid removing broken screws or bolts become a time-consuming task. Versatile use: With 6/9/10 three different sizes of damaged screw extractor included in this set, you can tackle a wide range of screw and bolt sizes which makes it a valuable addition to any toolbox. Wide Applications: This bolt extractors kit is suitable for industrial screw and bolt removal and for everyday home repair work which works for removing stripped, rusted, broken, or corroded screws and bolts. Specification: Condition: 100% brand new Material: High Speed Steel Weight & Model:  #A 108g/3.8oz (six-piece set)  Specification Metric System British / American System 1# M4 6# 2# M5 8-10# 3# M6 12#-1/4 4# M7-8 5/16" 5# M9-10 3/8" 6# M11-12 7/16-1/2" Precautions for use: M3 extractor to take out M4 taps, over-specification use will cause the product to break. Packing List: 1 Bag* Tap Extractor Set Notes: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List