The 5/16" 5 Pc Indexable Carbide Insert Turning Tool Bit Lathe Set is a high-quality tool bit set designed for metalworking. Made from durable carbide material, these tool bits feature chipbreaker technology to improve cutting efficiency and prevent chip build-up. This set includes five pieces to ensure you have the right tool for various turning tasks. Please note that this product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm, so it is important to take the necessary precautions when using it.