Carbide End Mills
EPB Series 4-Flute Ball End Mill
General Specifications
Solid carbide end mill — Type EP 4-flute ball end mill for general machining.
- For ISO P, M and K materials below HRC 55, for both roughing and finishing — a complete range of sizes for general use.
- End Type: Ball nose
- Flutes: 2 or 4
- Helix Angle: 35°
- Coating: Al-series
- Carbide Grade: UP4230
- Shank: plain (HA) shank, h6 tolerance
- Size Range: 1/16″–1/2″ cutting diameter, 6 sizes
| Model | Cutting Dia. DC (in) | Cutting Dia. DC (mm) | Shank Dia. DCON (in) | Overall Length LF (in) | Length of Cut APMX (in) | Flutes ZEFP | Ball Radius RE (in) |
|---|---|---|---|---|---|---|---|
| EPB-0062-4T | 1/16 | 1.588 | 1/8 | 1-1/2 | 1/4 | 2 | 1/32 |
| EPB-0093-4T | 3/32 | 2.381 | 1/8 | 1-1/2 | 3/8 | 2 | 3/64 |
| EPB-0125-4T | 1/8 | 3.175 | 1/8 | 1-1/2 | 1/2 | 4 | 1/16 |
| EPB-0250-4T | 1/4 | 6.350 | 1/4 | 2-1/2 | 3/4 | 4 | 1/8 |
| EPB-0375-4T | 3/8 | 9.525 | 3/8 | 2-1/2 | 1 | 4 | 3/16 |
| EPB-0500-4T | 1/2 | 12.700 | 1/2 | 3 | 1-1/4 | 4 | 1/4 |
| Workpiece Material | Grade / Hardness | Suitability |
|---|---|---|
| Carbon Structural Steel | C ≤ 0.25% | Excellent |
| Carbon Structural Steel | C 0.25–0.45% | Excellent |
| Carbon Structural Steel | C ≥ 0.45% | Excellent |
| Alloy Steel | ≤ HRC 25 | Excellent |
| Alloy Steel | HRC 25–35 | Excellent |
| Alloy Steel | HRC 35–45 | Excellent |
| Hardened Steel | HRC 45–50 | Good |
| Hardened Steel | HRC 50–62 | Suitable |
| Hardened Steel | HRC 62–70 | — |
| Aluminum Alloy | Si ≤ 9% | — |
| Cast Iron | Si ≤ 2.5% | — |
| Stainless Steel | Cr < 17% | — |
| Copper Alloy | — | — |
| Titanium Alloy | TC4 | — |
| Nickel Alloy | Cr < 13% | — |
| Graphite | — | — |