Hss Twist Drill Bits Metal Straight Shank Drilling Bit

Applications & Features:--- The straight shank design is suitable for a variety of electric drills, such as handheld electric drills, variable speed electric drills, brake electric drills, etc. Also perfect for general drilling of materials such as wood, steel, cast steel, malleable iron, etc.--- The spiral groove design improves drilling efficiency and makes it easier and less labor-intensive to use.--- Fully ground body with bright finished ensures precision and durability.--- Made of high-speed steel, ensuring its high hardness, durability, wear resistance and heat resistance.Useful Tips:--- Please select the appropriate rotation speed and apply the appropriate amount of pressure. Excessive rotational speed and excessive pressure may cause damage to the drill bit or a decrease in drilling quality.