HRC55 Carbide 2 Flute Standard Length Ball Nose End Mills
Product Overview
The HRC55 carbide 2-flute ball nose end mills (standard length) from MSK Cutting Technology are precision tools designed for high-efficiency milling of hardened materials. Combining a wear-resistant TiSiN coating, a tough tungsten carbide substrate, and an optimised geometry, these end mills excel in both roughing and finishing applications – particularly in mould & die making and general metalworking.
Key Technical Features
1. Advanced Substrate & Coating
- Raw material: Micro-grain tungsten carbide (HRC55 grade) for an excellent balance of hardness and transverse rupture strength.
- Coating: TiSiN (Titanium Silicon Nitride) – provides extremely high surface hardness, low friction coefficient, and superior oxidation resistance. This significantly extends tool life at elevated cutting temperatures.
2. Precision Diameter Tolerances
| Diameter range | Tolerance (mm) |
|---|---|
| 1 < D ≤ 6 | -0.010 to -0.030 |
| 6 < D ≤ 10 | -0.015 to -0.040 |
| 10 < D ≤ 20 | -0.020 to -0.050 |
3. Geometry Optimisation
- Double margin design – increases core rigidity and reduces chatter during high-speed machining.
- Centre-cutting edge – both flutes pass through the centre, enabling plunge milling, ramping, and slotting with reduced cutting resistance.
- Large‑capacity chip flute – ensures smooth chip evacuation, minimising chip packing and heat buildup. Ideal for deep‑slot and hole machining.
Suitable Workpiece Materials
This end mill series performs reliably on:
- Mould steels (P20, 718, NAK80, etc.)
- Carbon & alloy steels
- Cast iron (grey, ductile)
- Hardened steels (up to HRC55)
- Stainless steel (304, 316)
- Copper & aluminium alloys
| Workpiece Material | ||||||
| Carbon Steel | Alloy Steel | Cast Iron | Aluminium Alloy | Copper Alloy | Stainless Steel | Hardened Steel |
| Suitable | Suitable | Suitable | Suitable | Suitable | ||
Why Choose These Ball Nose End Mills?
- Cost‑effective – high performance at a competitive price.
- Excellent wear resistance – thanks to premium carbide and TiSiN coating.
- High‑temperature capability – retains hardness during continuous cutting.
- Process safety – advanced edge preparation reduces the risk of chipping.
- Complete size range – 1 mm to 20 mm diameters (see full table below).
- Reliable supply chain – fast delivery, professional packaging, and responsive after-sales support from MSK (Tianjin) Cutting Technology Co., Ltd.
Product Specifications (Standard Length – 2 Flute)
| Item No. | Diameter (mm) | Cutting Length (mm) | Shank Diameter (mm) | Overall Length (mm) | Flutes |
|---|---|---|---|---|---|
| MSKEM2FA002 | 1 | 2 | 4 | 50 | 2 |
| MSKEM2FA003 | 1.5 | 3 | 4 | 50 | 2 |
| MSKEM2FA004 | 2 | 4 | 4 | 50 | 2 |
| MSKEM2FA005 | 2.5 | 5 | 4 | 50 | 2 |
| MSKEM2FA001 | 3 | 6 | 3 | 50 | 2 |
| MSKEM2FA006 | 3 | 6 | 4 | 50 | 2 |
| MSKEM2FA007 | 4 | 8 | 4 | 50 | 2 |
| MSKEM2FA008 | 5 | 10 | 5 | 50 | 2 |
| MSKEM2FA009 | 6 | 12 | 6 | 50 | 2 |
| MSKEM2FA010 | 8 | 16 | 8 | 60 | 2 |
| MSKEM2FA011 | 10 | 20 | 10 | 75 | 2 |
| MSKEM2FA012 | 12 | 24 | 12 | 75 | 2 |
| MSKEM2FA013 | 14 | 28 | 14 | 100 | 2 |
| MSKEM2FA014 | 16 | 32 | 16 | 100 | 2 |
| MSKEM2FA015 | 18 | 36 | 18 | 100 | 2 |
| MSKEM2FA016 | 20 | 40 | 20 | 100 | 2 |
Note: The 3 mm diameter size is available with two shank options – 3 mm (MSKEM2FA001) or 4 mm (MSKEM2FA006) – to fit different toolholder systems.
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