Compatibility Assurance: Specifically designed for seamless integration, this milling machine headstock lock bolt handle is fully compatible with Bridgeport models, ensuring a perfect fit and hassle-free functionality. Robust Construction: Crafted from premium metal, this lock bolt boasts exceptional hardness and durability. Its robust construction prevents breakage and resists rust, extending the operational lifespan and reliability of your milling equipment. Precise Dimensions: Featuring a thread diameter of 1/2 inch (12.5 mm) and a thread length of 1 inch (25.55 mm), this bolt is engineered for precision. Ensure to verify the size prior to purchase to guarantee a perfect match with your milling machine. Effortless Installation: Designed for user convenience, this lock bolt handle can be easily installed without the need for complex instructions. Its straightforward design allows for immediate use, simplifying the setup process and saving time. Functional Efficiency: This lock bolt handle not only secures the spindle box of your milling machine but also enhances the machine's overall stability and performance during operation, making it an essential component for maintaining optimal functionality. Description/Features: Compatibility: Specifically designed for Bridgeport milling machines, this silver bolt with handle ensures a perfect fit and functionality. Function: Primarily used to securely fix and lock the spindle box of the milling machine, enhancing stability and precision during operations. Easy Installation: The bolt is crafted for straightforward usage, allowing for quick and hassle-free installation without the need for additional instructions. Durability: Made from high-quality metal, the bolt exhibits superior hardness, resistance to breakage and corrosion, ensuring an extended service life under rigorous