DLC Coated 2 Flute Solid Carbide Ball Nose End Mill for Aluminium – Extra Length
The Stiger extra length DLC coated 2 flute ball nose end mill is a solid carbide long-reach cutter for 3D machining of deep features in aluminium. The extended shank gets the ball end into deep mould cavities, pockets and behind walls. You don’t need tool extensions, and you avoid holder collisions with the workpiece.
DLC (Diamond-Like Carbon) is a very hard, very slippery coating with an extremely low friction coefficient. Aluminium chips slide off the flutes instead of welding to the cutting edge. This matters even more in deep features, where chips are harder to clear. The extra length is on the shank, not the flutes, so the cutting edges sit where you need them without unnecessary flute length weakening the tool.
Features
- Extended reach – overall lengths up to 150 mm for deep cavities, pockets and mould details
- DLC (Diamond-Like Carbon) coating – very hard, ultra-smooth surface with extremely low friction
- Prevents built-up edge – aluminium won’t stick to or weld onto the cutting edge
- 2 flute geometry – large chip space for efficient chip evacuation from deep features
- Full ball nose radius (R = D ÷ 2) – smooth blending on curved and sculptured surfaces
- Solid carbide construction – carbide’s stiffness keeps deflection down at long overhangs
- Sizes – R1 to R10 (Ø2 mm to Ø20 mm), in 75, 100 and 150 mm overall lengths
- Plain cylindrical shank – suits collet, shrink-fit and hydraulic holders
Applications
Aluminium and aluminium alloys, as well as copper, brass, bronze, plastics, acrylic and composites. Ideal for deep aluminium mould cavities, deep pockets and ribs, large-radius 3D surfacing, work in hard-to-reach areas and finishing near tall walls or fixtures.
Machining tip: reduce feed and depth of cut as overhang increases, and use the shortest tool that reaches the job. Not recommended for steel, stainless steel or other ferrous materials. For maximum rigidity, see our standard length DLC coated ball nose end mills.
Tool Dimensions
All dimensions in millimetres.
| Radius (R) | Cutter Ø (D) | Flute / Cutting Length (L1) | Shank Ø (d) | Shank Length (L2) | Overall Length (L) |
|---|---|---|---|---|---|
| R1 | 2 | 6 | 4 | 63 | 75 |
| R2 | 4 | 8 | 4 | 92 | 100 |
| R3 | 6 | 12 | 6 | 88 | 100 |
| R3 | 6 | 12 | 6 | 138 | 150 |
| R4 | 8 | 16 | 8 | 84 | 100 |
| R4 | 8 | 16 | 8 | 134 | 150 |
| R5 | 10 | 20 | 10 | 80 | 100 |
| R5 | 10 | 20 | 10 | 130 | 150 |
| R6 | 12 | 24 | 12 | 76 | 100 |
| R8 | 16 | 32 | 16 | 68 | 100 |
| R10 | 20 | 40 | 20 | 60 | 100 |
R = D ÷ 2. Shank lengths as specified in the updated size schedule. Diagrams are schematic and not to scale.






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