Feature: *The woodworking headstock spindle adapter converts your lathe spindle so that you can use a chuck with a different thread size. *Converts a spindle thread of 1"x8 TPI to a 1-1/2-8 TPI male thread. Allows a 1" x 8tpi threaded spindle to accept 1-1/2" x 8tpi threaded chucks, faceplates, and other woodturning tools and accessories *Made of Stainless steel; Weighs 0.57lb. *Includes set screw to lock the adapter to the spindle. *Flats allow for solid wrench tool grip for tightening and loosening from spindle; Wrench not included. Specifications: Product Name: Wood Lathe Chuck Adapter Material: Stainless steel Color: Silver Type: 1-1/2-8 TPI to 1'' 8 TPI Internal thread : 1" 8 TPI External thread : 1-1/2-8 TPI Length: (Approx. ) 1.57" Width: (Approx. ) 1.77" Item Weight: 260g / 0.57lb Compatible Devices: Lathe Included Components: Spindle Adapter Suitable for: Wood Lathe Chuck, Headstock Spindle Adapter Quantity: 1Pc Package Included: 1 Wood Lathe Chuck Adapter Note: 1.Transition: 1cm=10mm=0.39inch. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 3. Please allow slight manual measurement deviation for the data.