Sorby Thread Cutting Tool Set, 16 TPI is an excellent starter package designed to provide a solid foundation for learning to cut threads on turned objects. This set is i for crafting lidded boxes and other threaded turnings with precision and ease. Featuring a unique enhanced helix angle design specifically made for wood, these thread cutting tools ensure smooth and accurate results every time. The set includes a pair of thread cutters that can cut both male and female threads, equipped with high-speed steel blades and comfortable ash handles. Additionally, it comes with a Thread & Sizing Gauge (#63229) and the "Focus on Thread Cutting" DVD to help you master the technique. Model Number: A89HS16A