TUNGALOY CNMG120412HRM AH8015 80° Diamond Carbide Turning Insert with HRM Chipbreaker for CNC Machining

CNMG120412 HRM AH8015 Tungaloy Solid Carbide Insert 12.7mm IC 4.76mm Thick for Aerospace CNC Turning

The TUNGALOY CNMG120412HRM AH8015 is a premium 80° diamond-shaped solid carbide turning insert designed for CNC turning of heat-resistant alloys, stainless steel and tough steels. Engineered with Tungaloy’s premium carbide substrate and nano-multi-layer AlTiN coating (AH8015 grade), it delivers exceptional wear resistance, fracture toughness and stable chip control in general to moderate cutting conditions. The HRM chipbreaker ensures low cutting force and reliable chip evacuation, making it the first choice for aerospace, medical and energy component machining.

• 80° Diamond (C-type) Geometry: High rigidity with 0° relief angle, ideal for heavy-duty turning and interrupted cuts.
• HRM Chipbreaker: Optimized front-face protrusion reduces chip contact area, enabling smooth chip flow and low cutting force.
• AH8015 Grade: Nano AlTiN coating with high aluminum content offers excellent balance of wear and fracture resistance.
• Precision Ground Edges: Consistent corner radius (R1.2) and sharp cutting edges ensure superior surface finish and dimensional accuracy.
• Double-sided Usable: Through-hole design allows double-sided use, maximizing cost efficiency.

• Heat-resistant alloys (Inconel, Hastelloy)
• Stainless steel (304, 316, duplex)
• Alloy steel (4140, 4340)
• Pre-hardened steel
• High-strength low-alloy steel

• External roughing & semi-finishing turning
• Facing and contour turning
• Boring and internal profiling
• Aerospace engine components
• Medical implant parts
• Oil & gas valve components

Combining Tungaloy’s advanced AH8015 coating technology and HRM chipbreaker geometry, this insert provides exceptional reliability in heat-resistant alloy turning. The balanced wear and fracture resistance reduces unexpected tool failure, while the optimized chip control minimizes downtime for chip removal. It is a cost-effective solution for high-precision, high-efficiency CNC turning in demanding industries.