Ideal for machinists, DIY enthusiasts, and technical personnel who require precise hole finishing. This versatile tool is an essential addition to any toolkit, delivering smooth and professional results in every use. Constructed from speed steel, this tool offers exceptional wear resistance and longlasting durability. It is designed to handle a range of hole diameters with consistent performance, making it simple and easy to use across different projects. suited for applications in metalworking, woodworking, and product manufacturing where countersinking and chamfering are essential to improve fastener seating and reduce burrs. Key attributes Function: countersinking and chamfering holes Material: speed steel Diameter range: suitable for a range of hole sizes Performance: wear resistant, durable, easy to use Compatibility: works with common materials used in metalworking, woodworking, and plastics Use scenarios Metal fabrication: countersink screw holes in sheet metal to achieve flush screw heads and a clean finish. Cabinetmaking and woodworking: chamfer drill holes in hardwood or plywood for secure screw seating and reduced risk of splitting. Product assembly: prepare holes in aluminum, plastic, or composite panels to ensure smooth, reliable fastener installation.