The 90mm Crown Root Cutter is a versatile plumbing tool which can be used with drain rods that have a universal fitting. This cutter is specifically used for cutting root crowns in pipes, ensuring a precise and efficient cutting process. With a 90mm diameter, it is suitable for a range of pipe sizes and is a must-have accessory for plumbing and pipe fitting tasks. Its universal fitting capability makes it a convenient and practical tool for various plumbing projects around the home.