Under natural conditions, our drill bits are not easily corroded or deformed, so you can use with confidence Specifically tailored for hand drills, our drill bits are user-friendly and versatile Designed facilitates quick and easy cutting, making suitable for a wide metal parts, ensuring both economy and practicality in use This Obliques drill is high speed steel and is designed for drilling in wood and metal It is used to thread the interior of a hole and create a female thread that can accepts a mating male thread He drill bits are available in a variety of sizes, from very small to very large The size of the Bits depending on the size of the hole being processed, Manufacturer: LIzogli