Kyocera 0.005-2FL-BN TA SGM03029 Endmill - CNC Milling

Product Overview

The Kyocera 0.005mm 2-Flute Ball Nose Endmill (MPN: SGM03029) is a premium solid carbide cutting tool engineered for ultra-precision micro-machining, micro-mold fabrication, and high-accuracy 3D contouring. Featuring the advanced TA (TiAlN) PVD coating, this tool delivers exceptional thermal stability, reduced built-up edge, and extended tool life under demanding machining conditions. The Ball Nose geometry is optimized for 3D contouring, mold & die work, and complex surface generation where surface integrity is paramount.

Manufactured from ultra-fine grain carbide substrate, the SGM series offers ultra-high rigidity with controlled chip evacuation, making it the preferred choice for high-precision CNC milling operations across aerospace, automotive, medical, and general engineering sectors.

ISO Designation Breakdown

Engineering Dimensions & Geometry

Grade Details – Key Grade Characteristics

The TA Grade is a high-performance TiAlN (Titanium Aluminum Nitride) multi-layer PVD coating applied to an ultra-fine grain tungsten carbide substrate (0.5 µm grain size). This combination delivers:

• Thermal Stability: Operating temperatures up to 900°C without significant oxidation, enabling dry and near-dry machining.
• Hardness: Coating hardness of 3,300 HV ensures superior wear resistance in abrasive workpiece materials.
• Adhesion: Advanced arc-PVD technology ensures exceptional coating adhesion, preventing delamination under high mechanical loads.
• Low Friction: Coefficient of friction ~0.45 against steel, reducing cutting forces and built-up edge formation.
• Chemical Stability: Resistant to chemical diffusion at high cutting temperatures, maintaining edge sharpness longer.

Grade Comparison Matrix

Chipbreaker Profile

Ultra-precision ground chipbreaker with nano-polished rake face and micro-gullet design for controlled chip formation at sub-micron cutting depths. The geometry is optimized for minimal cutting forces to prevent tool deflection in delicate micro-machining operations.

The 2-Flute design features a 25° helix angle that promotes axial chip evacuation and minimizes chatter during high-speed engagement. The ball nose tip is precision-ground with a consistent radius profile (±0.005mm) to ensure accurate 3D surface reproduction without faceting.

Recommended Applications & Workpiece Materials

Application Map by Operation

Recommended Cutting Conditions

The following parameters are starting recommendations for micro-machining with high-speed spindle systems and flood coolant or MQL. Adjust based on spindle capability, workpiece fixturing, and desired surface finish.

Operating Guidelines

• Spindle Speed: Use high-speed spindle systems (50,000–200,000 rpm) to achieve adequate cutting speed. Standard spindles may not generate sufficient Vc for effective micro-machining.
• Run-out Check: Verify tool run-out is ≤ 2 µm at the tool tip. Even minimal run-out causes catastrophic failure in micro tools due to uneven load distribution.
• Coolant Strategy: Flood coolant with fine filtration (≤ 10 µm) is essential. For copper and graphite, oil mist or MQL is preferred to prevent thermal shock.
• Entry Strategy: Use helical or ramp entry with angle ≤ 1°. Never plunge directly into the workpiece. Pre-drill a pilot hole slightly larger than Dc when possible.
• Step-over (ae): For micro-finishing, maintain ae between 3–8% of Dc. For roughing micro-features, ae up to 15% of Dc is acceptable in soft materials.
• Vibration Control: Minimize overhang and use anti-vibration toolholders. Micro tools are extremely sensitive to chatter and harmonic resonance.
• Tool Life Monitoring: Inspect the tool after every 10–20 minutes of cutting time. Micro tool wear is often not visible; use a digital microscope for inspection.
• Workpiece Fixturing: Rigid fixturing is critical. Any vibration or movement will cause tool breakage. Use vacuum or precision clamps for thin workpieces.

Toolholder Compatibility

This 0.005mm micro endmill requires specialized holder systems for stable clamping and minimal run-out:

• Recommended Holders: Micro-Collet Chuck (Ø3mm), Precision Spindle (50,000–200,000 rpm), NSK / Nakanishi High-Speed Spindle
• Collet Size: Ø3mm Micro-Collet (ER8-M, ER11-M) or dedicated micro-chuck
• Clamping Length: Minimum 5× shank diameter (15mm) for stable clamping
• Run-out Tolerance: Holder system must maintain ≤ 2 µm at tool tip
• Balance Grade: G1.0 or better required for spindle speeds above 50,000 rpm
• Spindle Recommendation: NSK, Nakanishi, or equivalent high-speed air-bearing spindle

Packaging & Ordering Information

Catalog Meta Data