Multiple Sizes: This set includes 4 countersink drill bits and 4 claw drill bits to meet your daily work needs. High-quality carbon steel: The wood plug cutter set is made of carbon steel, durable and corrosion-resistant, high precision, high strength and smooth surface. Practical functions: 4-tooth chamfer punches make conical plugs to fill countersinks, while standard punches are used to remove wood defects. Wide applications: Suitable for bench and hand drills, we recommend using bench drills for more stable operation and improved work efficiency. Note: The speed should not be too fast, as it is easy to produce smoke, burns, etc. Note: The data are all measured manually, please allow an error of 1-3 cm Due to differences in light and display, there may be some color differences, please refer to the actual item received.