Kyocera 14,0 ENDMILL 2FL BN TB SGS48708

1. Product Overview

The Kyocera 14,0 ENDMILL 2FL Ball Nose SGS48708 is a premium solid carbide endmill precision-engineered for high-performance CNC milling operations. Manufactured in Japan using advanced powder metallurgy and precision grinding technology, this tool delivers exceptional surface finish, dimensional accuracy, and extended tool life in demanding production environments. Additional features include: Taper Neck.

Key Highlights:

• Solid carbide construction with MG (Micro-Grain) 1.0μm grain structure
• PVD TiSiN coating for superior heat and wear resistance
• 35° helix angle optimized for 2-flute configuration
• Precision ground to ±0.005mm tolerance
• Suitable for dry, MQL, and flood coolant machining

2. ISO Designation Breakdown

3. Engineering Dimensions & Geometry

4. Grade Details & Characteristics

Substrate: MG (Micro-Grain) 1.0μm tungsten carbide with cobalt binder (10-12% Co). The ultra-fine grain structure (average grain size 1.0μm) provides an optimal balance of hardness and toughness, preventing micro-chipping and edge breakdown under high cutting forces.

Coating: PVD TiSiN nano-composite coating for high hardness and oxidation resistance. Coating thickness: 2-4μm. Hardness: HV 3200-3500. Friction coefficient: 0.35-0.45. Color: Dark Copper/Bronze.

Physical Properties:

• Hardness: HRA 92.5
• Transverse Rupture Strength: 4000 MPa
• Density: 14.4-14.8 g/cm³
• Young's Modulus: 580-620 GPa
• Thermal Expansion: 5.2 × 10⁻⁶ /°C
• Thermal Conductivity: 80 W/m·K

5. Grade Comparison Matrix

6. Chipbreaker Profile

Wide flute gullets with positive rake geometry for efficient chip evacuation in slotting and plunging operations. Ideal for deep pocket machining.

Chipbreaker Specifications:

• Flute Width: 4.90mm (approx. 35% of diameter)
• Gullet Depth: 3.50mm
• Land Width: 2.10mm
• Primary Clearance Angle: 8°-10°
• Secondary Clearance Angle: 18°-22°
• Edge Preparation: Honed radius 0.02-0.03mm (T-land)

7. Recommended Applications & Materials

This endmill is optimized for the following material groups and industries:

8. Application Map by Operation

9. Recommended Cutting Conditions

Values are starting recommendations. Adjust based on machine rigidity, workpiece setup, and coolant conditions. Vc = Cutting Speed (m/min), fz = Feed per Tooth (mm), RPM = Spindle Speed, vf = Feed Rate (mm/min), ap = Axial Depth of Cut (mm), ae = Radial Depth of Cut (mm).

10. Operating Guidelines

• Coolant: Use flood coolant at 6-10% concentration for steels; air blast or MQL for aluminum. Minimum pressure: 10 bar for deep pocketing.
• Rigidity: Ensure tool overhang ≤ 4× diameter. Use shortest possible toolholder and minimize stick-out.
• Run-in: For first use, reduce Vc by 20% for the first 5 minutes to allow coating burnishing.
• Entry: Use ramp entry at 1-2° angle or helical interpolation. Avoid direct plunging except with ball nose or 2-flute tools.
• Chip Evacuation: Ensure adequate coolant flow to flute gullets. Use through-spindle coolant (TSC) when available for holes > 3× diameter.
• Tool Inspection: Check for coating wear (color change to silver), edge chipping, or built-up edge (BUE) every 30-60 minutes of cutting time.
• Re-sharpening: Not recommended for coated tools. Replace when flank wear exceeds 0.2mm or when surface finish degrades.
• Storage: Store in original packaging in dry conditions. Avoid contact between cutting edges.

11. Toolholder Compatibility

For optimal performance and tool life, use the following toolholder types with this 14.0mm endmill:

• ER32 Collet Chuck (3-20mm)
• ER40 Collet Chuck (6-26mm)
• Hydraulic Chuck (10-32mm)
• Shrink Fit Holder

Clamping Recommendations:

• Minimum clamping length: 35.0mm (2.5× diameter)
• Maximum runout at tool tip: ≤0.01mm TIR
• Recommended holder balance grade: G2.5 at 20,000 RPM
• For Weldon flat shanks: use side-lock holders or set screw holders with proper torque (8-12 Nm)

12. Packaging & Ordering Info

• MPN (Manufacturer Part Number): SGS48708
• Packaging: Individual protective plastic tube with end caps. Label includes barcode, MPN, and batch number.
• Minimum Order Quantity: 1 piece
• Stock Status: In Stock — Ships within 24-48 hours
• Warranty: Manufacturer defect warranty — 90 days from invoice date
• Country of Origin: Japan
• HS Code: 8207.70.00 (Interchangeable tools for rock drilling / earth boring)

13. Catalog Meta Data

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