Feature:1. The drill bit has high wear resistance, high hardness and high bending strength.2. With sharping cutting edges, milling grooves and cleanly surfaces, effectively improving work efficiency.3. These tool sets can work quickly and cleanly, without burrs or debris, and give you a cleanly work surface.4. Wide application range, can be used for watch repair, woodworking, cutting, carving, etc.5. There are 10 drill bits, can meet your use and replacement needs, very practically.Spec:Item Type: Mini Drill BitsMaterial: Tungsten steelSpecification: 1 Box Mini Drill Bits(10Pcs)Size: Approx. 0.8mm / 0.03inFunction: Watch repair, woodworking, cutting, carving, etc.Package List:1 Box Mini Drill Bits(10Pcs)