Features: brand new and high quality Made of high-quality bearing steel materials, practical and durable. Spiral flute screw extractor dimensions are engraved on the-extractor for easy identification. Broken bolt extractor kit can helps faster removing broken studs, bolts, socket screws, and fittings. Our spiral flute is designed to embed themselves deeper into the metal as you turn the tool, so as the fastener resistance increases, the-extractors grip increases. Bolt remover that remove broken screws, whether working on wood or metal, are for ideal for construction, automotive, home DIY projects or for industrial use. Package Includes: 5x/Set Screw Extractor Specifications: Material: Bearing Steel note: 1.Please allow 1-3cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.