In the metalworking and manufacturing industries, choosing the correct twist drill bit is essential for optimal efficiency, precision, and successful project outcomes. Jiacheng Tools provides an expert guide to help professionals select the ideal drill bit tailored specifically for metalworking applications.
Material Choice: High-Speed Steel (HSS)
High-Speed Steel (HSS) drill bits remain the standard choice due to their outstanding durability and precision. HSS drill bits maintain their hardness even at high temperatures, making them ideal for continuous drilling operations in materials such as steel, aluminum, and copper.
Drill Bit Coatings: From Basic to Advanced
Drill bit coatings greatly enhance performance by improving surface hardness and reducing friction. Basic coatings such as Bright finish and Black & Amber oxide offer foundational rust resistance and moderate durability. For more demanding applications, advanced coatings like Titanium Nitride (TiN) and Titanium Aluminum Nitride (TiAlN) provide superior hardness, reduced friction, and exceptional heat resistance, making them ideal for difficult materials like stainless steel.
Drill Tip Angles: 118° and 135° Split Point
Drill tip geometry significantly affects drilling performance. Common point tip angles include 118° and 135° split points. The 118° point is ideal for softer materials such as mild steel and aluminum, offering precise entry and smooth drilling. In contrast, the 135° split point excels in drilling harder materials, providing improved centering, reduced "bit walking," and efficient chip evacuation.
Selecting Size and Drill Type
Choosing the correct drill bit size and type for specific tasks ensures precision and structural integrity. Standard (jobber-length) drill bits suit general purposes, while stub-length drills offer higher rigidity for precision tasks. For deep-hole drilling applications, long-series drills are essential.
Investing in suitable tools greatly enhances productivity and quality in metalworking. Jiacheng Tools remains dedicated to providing comprehensive solutions, premium-quality drill bits, and expert advice for every drilling requirement.
Explore our products today to enhance your metalworking efficiency and accuracy. For additional industry insights and recommendations, visit Jiacheng Tools online or consult with our expert team directly.
Post time: Mar-12-2025