Features Screw extractor kit can easy out damaged and stripped broken screw , different sizes of screw extractor to meet different needs. Screw extractor kit made from carbon steel and are tempered twice for extra hardness and durability, screw extractor works on wood and machine screws, as well as flat, hex, or painted over screws. These extractors will remove most kinds of damaged, stripped, rusted, broken, or stuck screws from any wood or metal surface with relative ease. The new two water pipe extractors, designed for the broken water pipes. Screw Extractor can remove some of the common screwdriver can not be disassembled, damaged bolts, screws, bolts and pipes, reverse thread bits easily remove screws, bolts, studs, and threaded pipe fittings. High carbon steel manufacturing integral heat treatment strong and durable, convenient and efficient, long service life, black oxide finished for durability. Specification: Item Type: Screw Extractor Set Material: Carbon Steel Color: Black, Silver Purpose: Screw Extractor Extractor Diameter Size: 4 mm / 0.2inch, 3-6 mm / 0.1-0.2 inch 4.5 mm / 0.2 inch, 6-8 mm / 0.2-0.3 inch 6.4 mm / 0.3 inch, 8-11 mm / 0.3-0.4 inch 7.6 mm / 0.3 inch, 11-14 mm / 0.4-0.6 inch 11 mm / 0.4 inch, 14- 18 mm / 0.6-0.7 inch 15 mm / 0.6 inch, 18-20 mm / 0.7-0.8 inch 19 mm / 0.7 inch, 20-22 mm / 0.8-0.9 inch 24 mm / 0.9 inch, 22 -26 mm/0.9-1.0 inch Package List: 8 x Screw Extractor 1 x Red Storage Case  Package List 8 x Screw Extractor 1 x Red Storage Case