High-quality materials: The drill bit is made of high-quality ABS plastic and brown corundum grinding wheel, high hardness, rust-proof, wear-resistant, strong and durable. Easy to to use: The product is easy to use, very convenient and very suitable for quick drilling. Easy to carry: lightweight and portable practical tool, easy to carry. Convenient and efficient: use this sharpener with your drill to keep the drill sharp, improve drill utilization and save energy and money. Purpose: The grinding wheel of this product is brown corundum grinding wheel, which is mainly used for grinding iron drill bits. Other high hardness drill bits may be exempted. Size: length 170mm Color: blue and orange Applicable: 2.0-12.5MM lucky meet