Features [Material Composition] Crafted from premium alloy steel, the woodworking lathe thread chuck insert adaptor ensures exceptional durability and resistance to wear, making it a reliable choice for heavy-duty applications [Threaded Chuck Integration] The wood lathe headstock spindle adapter features a precisely machined thread pattern that allows for a smooth and secure insertion of the chuck, ensuring accurate alignment and minimal vibration during operation [Strong Functionality] The lathe headstock spindle adapter's precise threading,efficiently converts the 1-inch-8TPI (Threads Per Inch) spindle thread to a 33mm bore, enabling the use of a wide range of threaded chucks and accessories [Easy Disassembly] Providing stability and reliability during operation, the alloy steel lathe headstock spindle adapter has a flat surface that can be firmly held with a wrench for easy tightening and easy removal from the lathe Longevity: Thanks to thread chuck insert adaptor's alloy steel construction, the spindle adapter is built to withstand the rigors of frequent use and maintain its dimensional stability over time. Spectification: Item Type: Woodworking Lathe Headstock Spindle Adapter Material: Alloy Steel Male Thread: 1in-8TPI Female Thread: 33mm Height: Approx. 76mm / 2.99in Diameter: Approx. 50mm / 1.97in How to Use: Direct installation and use Packing List: 1 x Woodworking Lathe Headstock Spindle Adapter Package List 1 x Woodworking Lathe Headstock Spindle Adapter