Feature 1ALLOY TOOL STEEL: The fast change tool holder is forged with 40Gr alloy tool steel, ensuring high hardness, good wear resistance, and long service life. 2ADJUSTABLE HEIGHT: The height adjustment screw can adapt to various center heights of different lathe chucks, suitable for 13-18in diameter turning lathe. 3EASY INSTALLATION: This tool post holder has compact size and standard threads, making it easy to install on engines, workbenches, or turning lathes. 4APPLICABLE TOOLS: The V shape slot of this tool holder can accommodate 1/23/4in round shank boring bars and tools, as well as 1/23/4in square tool heads. 5FINE PROCESSING: All working parts have undergone fine grinding and hardening processing, without burrs or notches, ensuring safe operation.Item Type: Tool Post HolderModel: 250-302Material: Alloy Tool Steel 40GrCenter Bolt Thread: M10x1Socket Thread: M10x1.5Application: Suitable for 13-18in diameter turning lathe .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Tool Post Holder