4 Flute TiAlN Coated Carbide Step Reamer Multi Level Hole Sizing Tool for Steel Aluminum Alloys

Our 4-Flute TiAlN Coated Carbide Step Reamer revolutionizes precision hole finishing with its innovative multi-diameter design. This advanced cutting tool combines multiple reaming diameters in a single operation, delivering unmatched efficiency for complex machining applications. The TiAlN (Titanium Aluminum Nitride) coating provides extreme heat resistance (up to 900°C/1652°F) and reduced friction, making it ideal for high-performance CNC machining of steels, aluminum alloys, and exotic materials.

• ✔ 4-Flute Precision Geometry - Optimized balance between material removal rate and surface finish quality
• ✔ TiAlN Coated Carbide - Provides 3-5 × longer tool life versus uncoated tools in hard materials
• ✔ Multi-Diameter Steps - Single tool performs multiple hole sizing operations simultaneously
• ✔ Precision Ground Cutting Edges - Maintains ± 0.005mm diameter tolerance across all steps
• ✔ Through-Coolant Ready - Optional internal coolant channels for heat-intensive applications
• ✔ Special Edge Preparation - Prevents work hardening in stainless steels and nickel alloys

• ✅ Process Consolidation - Combines multiple finishing operations in one tool path
• ✅ Exceptional Surface Finish - Achieves Ra 0.1-0.3 μm surface quality
• ✅ Reduced Cycle Times - Eliminates multiple tool changes and setups
• ✅ Extended Tool Life - TiAlN coating withstands abrasive and high-temp applications
• ✅ Improved Dimensional Accuracy - Maintains tight tolerances across all step levels

• Aerospace component finishing (landing gear, turbine disks)
• Automotive transmission systems (gear housings, valve bodies)
• Hydraulic/pneumatic components (manifolds, cylinder blocks)
• Medical device manufacturing (implant connection points)
• Mold/die maintenance (ejector systems, guide bushings)
• Energy sector components (valve seats, pump housings)