The Robert Charles Countersink – Deburring Tool – Through Hole Zero Flute 90° is designed for smooth and efficient deburring and chamfering of through holes. The zero flute design provides a chatter-free cutting action, producing clean edges and a high-quality surface finish while reducing the risk of tool grabbing. Ideal for removing sharp edges and burrs from a wide range of materials including steel, aluminium, plastics, and non-ferrous metals, this 90° deburring tool offers reliable and consistent performance. Suitable for workshop, maintenance, and production environments where precision finishing is essential.