Engineered for stable side milling, shoulder profiling and shallow slotting in pre-hardened steels up to 38HRC. Solid carbide substrate, 35° helix, TiSiN nano coating. All sizes Ø1.0–Ø20.0 in stock for immediate shipment.
| MOQ | 1 pc (sample/stock) | 50 pcs (OEM/bulk) |
|---|---|
| Lead Time | 3–5 days (standard stock) | 10–15 days (custom/OEM) |
| Inventory | ✓ IN STOCK: Ø1.0–Ø20.0 (All GM-4F sizes available) |
| Custom Options | Extended cutting length (GM-4FL), slim shanks, AlTiN/TiAlN/uncoated, laser marking |
| Packaging | Individual vacuum blister + anti-rust paper | Rigid export cartons (50/100 pcs) |
| Shipping | DHL/FedEx/UPS for samples | Air/Sea freight for bulk. Incoterms: EXW, FOB, CIF, DDP |
| Model | D (mm) | d (mm) | H (mm) | L (mm) | Stock |
|---|---|---|---|---|---|
| GM-4F-1-3-4-50 | 1.0 | 4 | 3 | 50 | ● In Stock |
| GM-4F-1.5-4.5-4-50 | 1.5 | 4 | 4.5 | 50 | ● In Stock |
| GM-4F-2-6-4-50 | 2.0 | 4 | 6 | 50 | ● In Stock |
| GM-4F-2.5-7.5-4-50 | 2.5 | 4 | 7.5 | 50 | ● In Stock |
| GM-4F-3-9-4-50 | 3.0 | 4 | 9 | 50 | ● In Stock |
| GM-4F-3-9-3-50 | 3.0 | 3 | 9 | 50 | ● In Stock |
| GM-4F-3-12-3-75 | 3.0 | 3 | 12 | 75 | ● In Stock |
| GM-4F-3-15-3-100 | 3.0 | 3 | 15 | 100 | ● In Stock |
| GM-4F-3.5-10-4-50 | 3.5 | 4 | 10 | 50 | ● In Stock |
| GM-4F-4-10-4-50 | 4.0 | 4 | 10 | 50 | ● In Stock |
| GM-4F-4-16-4-75 | 4.0 | 4 | 16 | 75 | ● In Stock |
| GM-4F-4-20-4-100 | 4.0 | 4 | 20 | 100 | ● In Stock |
| GM-4F-5-13-5-50 | 5.0 | 5 | 13 | 50 | ● In Stock |
| GM-4F-5-20-5-75 | 5.0 | 5 | 20 | 75 | ● In Stock |
| GM-4F-5-25-5-100 | 5.0 | 5 | 25 | 100 | ● In Stock |
| GM-4F-6-15-6-50 | 6.0 | 6 | 15 | 50 | ● In Stock |
| GM-4F-6-24-6-75 | 6.0 | 6 | 24 | 75 | ● In Stock |
| GM-4F-6-30-6-100 | 6.0 | 6 | 30 | 100 | ● In Stock |
| GM-4F-8-20-8-60 | 8.0 | 8 | 20 | 60 | ● In Stock |
| GM-4F-8-30-8-75 | 8.0 | 8 | 30 | 75 | ● In Stock |
| GM-4F-8-35-8-100 | 8.0 | 8 | 35 | 100 | ● In Stock |
| GM-4F-10-25-10-75 | 10.0 | 10 | 25 | 75 | ● In Stock |
| GM-4F-10-40-10-100 | 10.0 | 10 | 40 | 100 | ● In Stock |
| GM-4F-12-30-12-75 | 12.0 | 12 | 30 | 75 | ● In Stock |
| GM-4F-12-45-12-100 | 12.0 | 12 | 45 | 100 | ● In Stock |
| GM-4F-14-45-14-100 | 14.0 | 14 | 45 | 100 | ● In Stock |
| GM-4F-16-45-16-100 | 16.0 | 16 | 45 | 100 | ● In Stock |
| GM-4F-18-45-18-100 | 18.0 | 18 | 45 | 100 | ● In Stock |
| GM-4F-20-45-20-100 | 20.0 | 20 | 45 | 100 | ● In Stock |
● All sizes in stock | Full range: Ø1.0–Ø20.0. Diameter tolerance: D≤12 → 0~-0.020mm | D>12 → 0~-0.030mm. CAD/STEP files available.
4-flute design doubles feed rates compared to 2-flute tools at same RPM. Significantly reduces machining time for high-volume mold base and fixture production.
Optimized helix angle provides excellent chip evacuation while maintaining edge strength for stable side milling and shoulder profiling in pre-hardened steels.
~3000 HV hardness with superior thermal stability. Extends tool life by 25-40% in continuous mold steel and cast iron machining operations.
All 30+ sizes (Ø1.0–Ø20.0) in stock. Ship within 3-5 days. No waiting for production. Perfect for urgent projects and just-in-time manufacturing.
| Workpiece | Hardness | Suitability | Notes |
|---|---|---|---|
| P20 / 718H / NAK55 | ≤38 HRC | ◎ Excellent | Optimized for mold base machining & shoulder profiling |
| Carbon/Alloy Steel (42CrMo, 4140) | ≤38 HRC | ◎ Excellent | Stable for side milling & shallow slotting |
| Cast Iron / Ductile Iron | - | ◎ Excellent | Air blow cooling recommended |
◎ = Very Suitable | ○ = Suitable | GM-4F is optimized for ≤38HRC. For 40–55HRC hardened steels, use our PM-4E series. For 55-68HRC, use our HM-4E series.
✅ Side Milling Roughing: ae = 0.5D–1.0D, ap = 0.5D–1.0D, Vc = 80–120 m/min
✅ Side Milling Finishing: ae = 0.05D–0.1D, ap = 0.1D–0.2D, Vc = 100–140 m/min
✅ Shallow Slotting: Reduce Vc by 30–50%, fz by 40–60%, maintain ap ≤ 0.5D
✅ Use climb milling exclusively for best surface finish and tool life
⚠️ Ensure runout <0.005mm. Higher runout accelerates edge wear and reduces dimensional accuracy
⚠️ Use rigid toolholding (hydraulic/chuck) for diameters ≥Ø6.0mm to minimize vibration
⚠️ For cast iron, use air blow or MQL to evacuate abrasive chips and prevent recutting
⚠️ Avoid full-width slotting with ap > 0.5D to prevent chip packing and edge overload
Side milling and shoulder profiling of P20/718H mold bases. 4-flute design reduces machining time while maintaining tight tolerances on parting lines.
Shoulder profiling and shallow slotting of 42CrMo/4140 brackets, housings and fixtures. TiSiN coating extends tool life in high-volume production.
Precision side milling of cast iron and alloy steel fixtures. Square end geometry ensures sharp 90° corners and accurate shoulder dimensions.
🔹 Substrate: Ultra-fine carbide grade (0.4μm grain size) for high toughness & wear resistance
🔹 Grinding: 5-axis CNC machines maintain diameter tolerance 0~-0.020mm & runout <0.005mm
🔹 Coating: PVD TiSiN layer (2.5–3.5μm) applied at <450°C to preserve edge sharpness & prevent substrate softening
🔹 Inspection: 100% laser diameter check, coating adhesion scratch test, packaging in dry nitrogen environment
🔹 Traceability: Each batch includes laser-etched SKU, grinding date, and QC certificate. Available upon request.
Specify your diameter range, material, and monthly volume. We respond with pricing, stock status within 24 hours.
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