Carbide 4 Flute Corner Radius End Mill with Extended Neck
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The extended neck profile supports machining around mould and die features.
Four flutes and a corner radius profile suit precise steel machining operations.
Multiple Helix geometry on 3.0 mm and larger tools helps minimise vibration and cutting wear.
| SKU | Mill Diameter (mm) | Corner Radius (mm) | Overall length (mm) | Shank dia. (mm) | Length of cut (mm) | Length below shank (mm) | Neck dia. (mm) | Stock | Price | Qty | Add |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SEME640100104E | 1.0 | R0.1 | 50.0 | 4.0 | 1.5 | 4.0 | 0.95 | 1-2 Weeks | $60.00 | ||
| SEME6401200512E | 1.2 | R0.05 | 50.0 | 4.0 | 1.8 | 12.0 | 1.15 | 1-2 Weeks | $60.00 | ||
| SEME6401500504E | 1.5 | R0.05 | 50.0 | 4.0 | 2.3 | 4.0 | 1.45 | 1-2 Weeks | $60.00 | ||
| SEME640200106E | 2.0 | R0.1 | 50.0 | 4.0 | 3.0 | 6.0 | 1.95 | 1-2 Weeks | $60.00 | ||
| SEME640250108E | 2.5 | R0.1 | 50.0 | 4.0 | 4.0 | 8.0 | 2.4 | 1-2 Weeks | $60.00 | ||
| SEME640300108E | 3.0 | R0.1 | 50.0 | 6.0 | 4.5 | 8.0 | 2.85 | 1-2 Weeks | $67.80 | ||
| SEME640400110E | 4.0 | R0.1 | 50.0 | 6.0 | 6.0 | 10.0 | 3.85 | 1-2 Weeks | $67.80 | ||
| SEME6405001E | 5.0 | R0.1 | 60.0 | 6.0 | 8.0 | 15.0 | 4.85 | Low stock | $74.20 | ||
| SEME6406001E | 6.0 | R0.1 | 60.0 | 6.0 | 9.0 | 20.0 | 5.85 | 1-2 Weeks | $70.10 | ||
| SEME6408002E | 8.0 | R0.2 | 70.0 | 8.0 | 12.0 | 25.0 | 7.7 | In stock | $108.60 | ||
| SEME6410001E | 10.0 | R0.1 | 75.0 | 10.0 | 15.0 | 30.0 | 9.7 | 1-2 Weeks | $141.40 | ||
| SEME6412002E | 12.0 | R0.2 | 80.0 | 12.0 | 18.0 | 32.0 | 11.7 | In stock | $190.70 | ||
| SEME6416005E | 16.0 | R0.5 | 100.0 | 16.0 | 20.0 | 35.0 | 15.7 | Low stock | $404.30 | ||
| SEME6420005E | 20.0 | R0.5 | 100.0 | 20.0 | 35.0 | 40.0 | 19.7 | 1-2 Weeks | $440.60 |
Add 4G MILL 4 Flute Multiple Helix Rib Corner Radius End Mill (SEME64) to comparison
View ComparisonYG-1 4G MILL SEME64 is a carbide, four-flute corner radius end mill with extended neck. It is designed for precision machining of prehardened steels up to HRc55 used in mould and die work. The SEME64 family combines a corner-radius cutting profile with four carbide cutting flutes. Y coating and updated tool geometry support cutting ability and wear resistance. Diameters span 1.0 to 20.0 mm, with corner radii selected by individual SKU. Tools from 3.0 mm diameter use multiple helix geometry to minimise vibration and cutting wear. Smaller-than-3.0 mm tools use a 30° helix; 3.0 mm and larger tools use Multiple Helix.
| Cutting Shape | Corner Radius |
| Helix Angle | 30°, Multiple |
| Length | Extended Neck |
| No. Flutes | 4 |
| Operation | Corner, Die Sinking, Facing, Helical-Interpol, Side Milling, Slotting, Small Part |
| Shank Type | Plain |
| Surface Treatment | YG-1 Y Coating |
| Tool Material | Carbide |
VDI 3323 recommendations for this tool.
Individual grade ratings and nominal hardness references. Base grades and decimal subgrades are listed separately.
| VDI | Work material | Recommendation | HB ref. | HRC ref. |
|---|---|---|---|---|
| 1 | PNon-alloy steel | Good | 125 | - |
| 2 | PNon-alloy steel | Good | 190 | 13 |
| 3 | PNon-alloy steel | Good | 250 | 25 |
| 4 | PNon-alloy steel | Excellent | 270 | 28 |
| 5 | PNon-alloy steel | Excellent | 300 | 32 |
| 6 | PLow-alloy steel | Good | 180 | 10 |
| 7 | PLow-alloy steel | Excellent | 275 | 29 |
| 8 | PLow-alloy steel | Excellent | 300 | 32 |
| 9 | PLow-alloy steel | Excellent | 350 | 38 |
| 10 | PHigh-alloy and tool steel | Good | 200 | 15 |
| 11 | PHigh-alloy and tool steel | Excellent | 325 | 35 |
| 15 | KGrey cast iron | Good | 180 | 10 |
| 16 | KGrey cast iron | Good | 260 | 26 |
| 17 | KNodular cast iron | Good | 160 | 3 |
| 18 | KNodular cast iron | Good | 250 | 25 |
| 19 | KMalleable cast iron | Good | 130 | - |
| 20 | KMalleable cast iron | Good | 230 | 21 |
| 38 | HHardened steel | Good | 550 | 55 |
| 40 | HChilled cast iron | Excellent | 400 | 42 |
| 41 | HHardened cast iron | Good | 550 | 55 |
No grades match your search.
HB and HRC values are nominal catalogue references. Grade subdivisions can vary between catalogues.
Recommendations apply to the listed VDI grades. Unlisted grades have no stated recommendation.
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