Oneway Stronghold Chuck Taper Lock Adapter, 3/4 in. x 16 TPI is designed to securely attach the Stronghold Chuck to the drive spindle of your lathe. This adapter fits all lathes with a 3/4" diameter and 16 threads per inch (TPI) drive spindle, ensuring compatibility and reliable performance. Please note that Taper Lock Adapters are sold separately from the chucks, so be sure to order the correct adapter for your lathe when purchasing a chuck. This adapter provides a precise and sturdy connection, making it an essential accessory for your lathe setup. Model Number: 0336