Western Saw Inc’s Threaded Tubes are available in sizes from 1.00″ Diameter to 6.00″ Diameter with 8 Threads Per Inch(TPI), and sizes from 2.00″ diameter to 6.00″ diameter with 4 Threads Per Inch(TPI). All sizes and Threads Per Inch(TPI) are in stock and ready to ship. Tubes are manufactured from custom proprietary steel composition. State-of-the-art tube production facility and process protocol enables concentricity. Additionally, custom tubes, adapters, and extensions in various sizes and types are available. Reverse engineering services are available. Small or long production runs are accepted with short lead times and on-time delivery.