Manual countersink deburring tool that delivers efficient deburring and precise chamfering, improving processing speed and edge quality across a range of materials. Made from speed steel, this tool offers wear resistance and longlasting durability, allowing reliable use for a range of hole diameters. Easy to use with consistent chamfer angles and clean deburred edges, reducing rework and improving finish on each job. Ideal for machinists, DIY enthusiasts, and technical personnel who require precise results in their work. Well suited for metalworking, woodworking, and product manufacturing environments where countersinking and deburring are essential. Key attributes: manual operation, compatible with a range of hole sizes, durable construction, and reliable performance in demanding applications. Use scenario 1: in metal fabrication, deburr drilled holes in steel or aluminum plates and countersink for flush bolt or screw heads. Use scenario 2: in woodworking, chamfer and smooth edges on wooden parts to improve fit and finish for hardware mounting or decorative trims. Use scenario 3: in product development or hobby projects, prepare components with consistent countersink geometry to ensure precise assembly and clean appearance.