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Dimensions
| Parameter | Metric (mm) | Inch (in) |
| Cutting Diameter (D1) | 3 | 0.1181 |
| Corner Radius (R ) | 0.5 | 0.0197 |
| Cutting Length (L1) | 8 | 0.315 |
| Shank Diameter (D) | 4 | 0.1575 |
| Overall Length (L) | 50 | 1.9685 |
Specifications
| Parameter | Value |
| Cutting Diameter Tolerance (D1) | 0 / -0.01mm |
| Shank Diameter Tolerance (D) | h5 (+0 / -0.005mm for Ø4) |
| Corner Radius Tolerance (R) | ±0.01 mm |
| Flutes | 4 |
| Coating | TiAlSiN |
| Helix Angle | 35° |
Overview
GC Series Plastic Mold End Mills Crafted for semi-finishing and finishing of plastic mold steels. Made from ultra-fine grain carbide with TiAlSiN coating, these end mills deliver stable cutting, excellent wear resistance, and long tool life.
4-Flute Corner Radius End Mills are ideal for cavity bottoms and side wall transitions. The radius edge design disperses cutting stress, improves chipping resistance, and delivers smoother surface transitions.
Substrate & Coating
- Substrate: Ultrafine-grain carbide with a balanced combination of high hardness and toughness.
- Coating: TiAlSiN nanocomposite coating — high surface hardness, excellent wear and high-temperature oxidation resistance, effectively extending tool life.
Cooling Recommendation
Optimized for air cooling or Minimum Quantity Lubrication (MQL); use flood coolant for heavy cuts. Dry cutting possible for short passes but not recommended long term.
Cutting Capability
- Workpiece Hardness: ≤ HRC48
- Typical Materials: P20 / 1.2311, 718 / 1.2738, 718H, NAK80, 4Cr13H, S136, 1.2085
- Note: Not suitable for hardened steels exceeding HRC48 after heat treatment.
Edge & Flute Design
- Edge honing and reinforced radius to extend tool life and reduce micro-chipping
- Optimized 4-flute flute form for smooth chip flow and steady cutting forces