Kyocera 0.0950-2FL-0020R TA SGM08731 ENDMILL - CNC Milling

Product Overview

The Kyocera SGM08731 is a premium solid carbide endmill engineered for demanding CNC milling operations. Featuring a 0.0950″ cutting diameter, 2FL flute design, and a precision-ground 0.020R corner radius, this tool delivers exceptional performance in heavy-duty roughing, slotting, and high-material-removal applications requiring robust corner protection. Manufactured in Japan with TA-grade sub-micron carbide, the SGM08731 offers superior wear resistance, thermal stability, and edge integrity for extended tool life in high-speed machining environments.

ISO Designation Breakdown

Engineering Dimensions & Geometry

Grade Details – Key Grade Characteristics

The TA Grade is a sub-micron grain carbide substrate (grain size: 0.5 μm) combined with a multi-layer PVD coating optimized for high-speed milling operations. Key characteristics include:

• Hardness: 92.5 HRA (1,600 HV30) – Exceptional wear resistance in continuous cutting
• Transverse Rupture Strength: 3,800 MPa – High edge stability under intermittent cuts
• Coating Composition: TiAlN-based multi-layer PVD coating with enhanced oxidation resistance up to 900°C
• Coating Thickness: 2.5 μm – Optimal balance between protection and edge sharpness
• Friction Coefficient: 0.35 – Reduced built-up edge and improved chip evacuation
• Thermal Conductivity: 60 W/m·K – Efficient heat dissipation from the cutting zone

Grade Comparison Matrix

Chipbreaker Profile

The SGM08731 features a precision-ground flute geometry optimized for 2FL flute endmills. The chipbreaker design ensures controlled chip formation and evacuation across a wide range of cutting parameters:

• Flute Profile: Variable helix with 35° primary helix angle minimizes harmonic vibration
• Core Design: Reinforced core (60% of cutter diameter) provides maximum rigidity for reduced deflection
• Edge Preparation: Micro-honed cutting edge (0.02 mm hone) enhances edge stability and prevents chipping
• Corner Geometry: 0.020R radius with polished transition zones reduces stress concentration and extends corner life
• Flute Polishing: Mirror-finished flute surfaces (Ra 0.1 μm) prevent material adhesion and improve chip flow

Recommended Applications & Workpiece Materials

This tool is optimized for heavy-duty roughing, slotting, and high-material-removal applications requiring robust corner protection. Ideal workpiece materials include: Tough alloy steels, tool steels, hardened materials (up to 50 HRC), and cast iron.

Application Map by Operation

Recommended Cutting Conditions

Parameters are provided as starting recommendations. Adjust based on machine rigidity, workpiece clamping, and coolant delivery.

Operating Guidelines

• Runout Check: Ensure tool runout does not exceed 0.005 mm (0.0002″) at the tool tip. Excessive runout accelerates corner wear and reduces surface finish quality.
• Coolant Strategy: Flood coolant or high-pressure through-spindle coolant (MQL) is recommended for steel and stainless steel. For aluminum, air blast or minimal lubrication prevents built-up edge.
• Ramp Entry: Use helical ramp entry with a maximum ramp angle of 2° for pocketing operations. Avoid plunging directly into solid material.
• Stepover Recommendation: For finishing operations, maintain stepover (ae) between 5-15% of cutter diameter to achieve mirror surface finishes (Ra 0.4 μm or better).
• Chip Load Verification: Always verify actual chip load against calculated values. Insufficient chip load causes rubbing and premature coating failure; excessive chip load leads to chipping.
• Tool Life Indicator: Monitor flank wear (VB). Replace tool when VB exceeds 0.1 mm for roughing or 0.05 mm for finishing operations.

Toolholder Compatibility

Packaging & Ordering Information

• Packaging: Each tool is individually sealed in a nitrogen-purged blister pack with desiccant to prevent oxidation during storage.
• Labeling: Package includes barcode (Code 128), QR code linking to digital catalog, and full dimensional print.
• Minimum Order Quantity: 1 piece (no MOQ for standard catalog items).
• Lead Time: In-stock items ship within 24-48 hours. Non-stock items: 4-6 weeks ex-factory Japan.
• Storage Conditions: Store in original packaging at 15-25°C with relative humidity below 60%. Avoid direct sunlight and corrosive atmospheres.
• Batch Traceability: Each tool is laser-marked with batch number and manufacturing date for full traceability.

Catalog Meta Data

Disclaimer: Cutting parameters and recommendations are provided as general guidelines. Actual performance depends on machine condition, workpiece material consistency, coolant type, and operator skill. Always conduct test cuts when machining unfamiliar materials. Kyocera and Kyotow.com are not liable for tool failure resulting from improper application or operating conditions outside recommended ranges.