Made of high quality ABS plastic and brown corundum. High-quality material: The drill bit is made of high-quality ABS plastic and brown corundum, which is high hardness, anti-rust, wear-resistant, sturdy and durable. Easy to use: The product is easy to use, very practical and perfect for quick drilling. Easy to Carry: Lightweight and portable practical tool, easy to carry. PRACTICAL AND EFFECTIVE: Use this sharpener with your drill bits to keep your drill bits sharp, improve drill bit utilization, and save energy and money. Uses: The grinding wheel of this product is a brown corundum grinding wheel, which is mainly used for grinding iron drill bits. Other high hardness drill bits are exempt. Quantity shipped: 2 pieces Color: blue, orangeNote: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.