High-quality material: Using high-quality material, the fine grinding process makes the cutting edge sharper. Features: The drill bit has a large waste evacuation space, small waste evacuation resistance, and stable waste evacuation. Reliable: Reduce cutting force and broken bits, improve the quality of the hole wall. Convenience: Easy to replace, good for cutting PCB solder holes. Use high-quality materials, and the fine grinding process makes the cutting edge sharper. The drill bit has a large waste evacuation space, low resistance, and is smooth when evacuating waste. Reduce cutting force and broken bits, improve the quality of the hole wall. Easy to change and do a great job cutting through the PCB for solder holes. soldering. Comes in a large capacity container that allows you to easily grab the drill bit you need when you need it. Colors: Multicolor Dimensions: 0.30 - 1.20 mm Delivery quantity: 10 sets Note: Other items are not included here, other pictures only show the effects. Due to differences between monitors, the image may not reflect the actual color of the product. Products are measured manually, please allow the error, thank you!