FEATURES: Reliable Quality- Made from carbon steel and are tempered twice for extra hardness and durability. Works on wood and machine screws, as well as flat, hex, or painted over screws. Different sizes of screw extractor to meet different needs. Remove Damaged Screws Bolts And Water Pipes - These extractors will remove most kinds of damaged, stripped, rusted, broken, or stuck screws from any wood or metal surface with relative ease. It 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. SPECIFICATIONS: Material:carbon steel PACKAGE INCLUDES: 1xBroken screw extractor