Standard Solid Carbide End Mills
HRC55 Square End Mill 4F
A rigid square end mill for efficient material removal, accurate shoulders and smooth flat surfaces.
Product Advantages
01Rigid cutting geometry
02Efficient material removal
03Accurate shoulders and slots
04Smooth surface finish
Technical Information
| Item | Specification |
|---|---|
| Tool Material | Premium micro-grain solid carbide |
| Geometry | 4-flute / square-end geometry |
| Coating | Application-specific high-performance coating |
| Recommended Materials | Carbon steel, alloy steel, tool steel and mold steel with workpiece hardness up to HRC55 |
| Typical Operations | Side milling, slotting, shoulder milling, profiling and finishing |
Published Specifications & Cutting Data
The following values are based on the specifications currently published for this product. Please confirm stock dimensions and machining conditions before ordering.
Product Information
| Item | Description |
|---|---|
| Product Name | Gold Coated 4-Flute Square End Mill |
| Tool Material | Fine-Grain Solid Carbide |
| Number of Flutes | 4 Flutes |
| End Style | Square End / Flat End |
| Coating | Gold Wear-Resistant Coating |
| Helix Angle | Approximately 30°–35° |
| Shank Type | Straight Shank |
| Cutting Direction | Right-Hand Cutting |
| Recommended Hardness | Workpiece hardness up to approximately HRC55 |
| Manufacturing Method | Precision Ground |
Reference Specifications
| Cutter Dia. D | Cutting Length L | Shank Dia. D2 | Overall Length L2 | Flutes |
|---|---|---|---|---|
| 1.0 | 3 | 4 | 50 | 4 |
| 1.5 | 5 | 4 | 50 | 4 |
| 2.0 | 6 | 4 | 50 | 4 |
| 2.5 | 8 | 4 | 50 | 4 |
| 3.0 | 9 | 3 | 50 | 4 |
| 3.0 | 9 | 4 | 50 | 4 |
| 3.5 | 11 | 4 | 50 | 4 |
| 4.0 | 12 | 4 | 50 | 4 |
| 5.0 | 15 | 5 | 50 | 4 |
| 5.0 | 15 | 6 | 50 | 4 |
| 6.0 | 18 | 6 | 50 | 4 |
| 7.0 | 24 | 8 | 60 | 4 |
| 8.0 | 24 | 8 | 60 | 4 |
| 9.0 | 30 | 10 | 75 | 4 |
| 10.0 | 30 | 10 | 75 | 4 |
| 11.0 | 35 | 12 | 75 | 4 |
| 12.0 | 35 | 12 | 75 | 4 |
| 14.0 | 45 | 14 | 100 | 4 |
| 16.0 | 45 | 16 | 100 | 4 |
| 18.0 | 45 | 18 | 100 | 4 |
| 20.0 | 45 | 20 | 100 | 4 |
Reference Dimensional Tolerance
| Cutter Diameter | Diameter Tolerance |
|---|---|
| D ≤ 12 mm | 0 / −0.015 mm |
| D > 12 mm | 0 / −0.020 mm |
Reference Cutting Conditions
| Workpiece Material | Material Condition | Recommended Vc |
|---|---|---|
| Carbon steel | Below HRC30 | 80–120 m/min |
| Alloy steel | HRC30–40 | 60–90 m/min |
| Tool or mold steel | HRC40–50 | 45–70 m/min |
| Hardened mold steel | HRC50–55 | 30–50 m/min |
| Gray cast iron | Below HRC32 | 55–90 m/min |
| High-alloy cast iron | HRC35–45 | 40–65 m/min |
Reference Machining Parameters
| Cutter Dia. | Spindle Speed | Feed Rate |
|---|---|---|
| 4 mm | 4,000–6,000 rpm | 280–550 mm/min |
| 6 mm | 3,000–4,500 rpm | 320–650 mm/min |
| 8 mm | 2,200–3,500 rpm | 350–700 mm/min |
| 10 mm | 1,800–2,800 rpm | 350–720 mm/min |
| 12 mm | 1,500–2,300 rpm | 350–720 mm/min |
| 16 mm | 1,100–1,700 rpm | 320–650 mm/min |
| 20 mm | 850–1,400 rpm | 280–580 mm/min |
Customization & OEM Service
Custom cutting diameters, flute lengths, overall lengths, shank diameters, tool geometry, coatings, laser marking and private-label packaging are available according to your machining requirements.
Get a Quote for Your Cutting Tools
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