•High-Carbon Steel Durability: This 5-piece broken screw extractor set is crafted from high-carbon steel, offering superior strength and durability •Versatile Size Range for Multiple Applications: The set includes five extractors, ranging from sizes suitable for 4-18mm screws and pipes •Precision Thread Design: Each extractor features a precisely engineered thread length, ensuring firm grip and easy extraction of broken components •Heat-Treated for Enhanced Strength: Each extractor undergoes a high-temperature quenching process, enhancing hardness and toughness •Easy to Use for Various Materials: The set is suitable for extracting broken screws from pipes, valves, and other metal components. Its design ensures quick and simple usage Specifications: •Product material: high carbon steel •Product process: high temperature quenching •Product size: •1 : total length 53mm, head diameter 2.7mm, shank diameter 3mm, thread length 16mm, applicable range 4-6mm •2 : total length 58mm, head diameter 3mm, shank diameter 3.6mm, thread length 20mm, applicable range 6-8mm •3 : total length 65mm, head diameter 4mm, shank diameter 5.2mm, thread length 24mm, applicable range 8-11mm •4 : total length 76mm, head diameter 5mm, shank diameter 6.3mm, thread length 30mm, applicable range 11-14mm •5 : total length 80mm, head diameter 8mm, shank diameter 8.5mm, thread length 33mm, applicable range 14-18mm Package included: •5 x Broken Screw Extractor •1 x Storage Box