This precision-engineered 7.5mm 4-flute stepped end mill features advanced DLC (Diamond-Like Carbon) coating for superior performance in machining hardened steels, titanium alloys, and other difficult-to-cut materials. The unique stepped design allows for efficient multi-level milling operations in a single pass, significantly reducing machining time while maintaining exceptional accuracy.

• Premium submicron grain tungsten carbide substrate (0.4-0.6μm)
• Advanced DLC coating (2-3μm thickness) for extreme wear resistance
• Precision ground cutting edges with ±0.005mm tolerance
• Optimized 4-flute design for balanced chip evacuation and surface finish
• 35° helix angle for smooth cutting action and reduced vibration
• Special edge preparation for improved tool life in tough materials
• 7.5mm cutting diameter with multi-level step design

• 5× longer tool life compared to standard TiN-coated end mills
• Extremely low coefficient of friction (0.1-0.2) for cooler cutting
• Excellent adhesion resistance when machining sticky alloys
• Maintains sharp cutting edges even at high temperatures
• Suitable for dry machining and MQL applications

• Precision mold and die manufacturing (hardened steels)
• Aerospace component machining (titanium, Inconel)
• Medical implant manufacturing
• Automotive high-strength alloy components
• Energy sector (turbine blades, drilling components)