M35 Steel in High-Speed Drilling: Performance Benefits Explained
Drilling generates intense heat at the cutting edge, especially when working at high speeds or in tough materials. Standard high-speed steel can soften under these conditions, shortening tool life. M35, also known as HSS-Co5, was developed to handle this challenge. For manufacturers focused on productivity and hole quality, understanding what M35 offers and sourcing it from a dependable M35 steel supplier can make a measurable difference. What is M35 steel? M35 is a molybdenum-based high-speed steel with roughly 5% cobalt added to a composition similar to M2. It also contains tungsten, chromium and vanadium. The cobalt addition does not form carbides on its own, but it strengthens the steel's ability to retain hardness at high temperatures. Key performance benefits in drilling The main advantage is superior hot hardness. When a drill bit runs at high speed or cuts heat-resistant materials, the cutting edge becomes very hot. M35 resists softening better than M2, so the edge stays...