Sorby Relief Cutting Tool is designed to work seamlessly with the Robert Sorby Thread Cutting Tools, specifically those with 10, 16, and 20 threads per inch. This tool expertly cuts the rabbet, or relief cut, before threading begins, ensuring that the threads stop cleanly without damaging the container. Crafted with a high-speed steel (HSS) blade and featuring a comfortable 9-inch ash handle, this tool measures approximately 12-1/2 inches in overall length. Made in England, it combines precision and durability for superior woodworking results. Model Number: B895001