Features: Made of premium high speed steel, high hardness and anti-corrosion. Each tap extractor is specially designed for quick grip and easy removal of broken taps. Works to remove stripped, rusted, broken or corroded screws and bolts. Each tap extractor is subjected to rigorous quality testing and durable to use. Suitable for industrial screw and bolt removal and daily home repair work. Specifications: Condition: Material: High Speed Steel Weight & Model: (Optional) #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" #B 493g/17.4oz (Nine-piece set) Specification Metric system British/American system 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" 7# M14 9/16" 8# M16 5/8" 9# M18-20 3/4" 10# M22-24 7/8-1" #C 656g/23.1oz (Ten-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" 7# M14 9/16" 8# M16 5/8" 9# M18-20 3/4" 10# M22-24 7/8-1" Package List: 1 Bag * Tap Extractor Set Note: 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. 3. The product is not suitable for faucets too tight, if the tap is too tight, the extractor will be easy to break. jaws, the smaller the extractor, the easier it will be to break the jaws. 1. Made of superior high speed steel, high hardness and anti-corrosion. 2. Each tap extractor is specially designed for quick grip and easy removal of broken screw taps. 3. Works to remove stripped, rusted, broken or corroded screws and bolts. 4. Each tap extractor is subjected to rigorous quality testing and durable to use. 5. Suitable for industrial screw and bolt removal and daily home repair work.