HRC55 2-Flute Long Neck Ball Nose End Mill for Steel
Ball Radius
Custom sizes
Neck Reach
Flexible lengths
Flutes & Coating
Material-matched options
Custom Tolerances
Drawing-based precision
HRC55 2-Flute Long Neck Ball Nose End Mill
This HRC55 2-flute solid carbide long-neck ball nose end mill for steel is designed for 3D contouring and deep-cavity mold finishing. Reduced-neck geometry provides sidewall clearance for recessed curves, fine details and hard-to-reach surfaces.
Key Features
01
Ball-nose geometry for precision 3D contouring and mold finishing.
02
Reduced-neck clearance for deep cavities and recessed surfaces.
03
Two-flute design supports chip evacuation in small-diameter milling.
04
HRC55 series for suitable steel and pre-hardened mold-steel applications.
05
Multiple ball radii and neck lengths, with custom options available.
Product Details
Ball Radius & Neck Length Options
Multiple sizes for different cavity depths and machining features.
Ball-End & Reduced-Neck Geometry
Ball-end profile and neck clearance for precision finishing.
Recommended Applications
- Deep mold-cavity finishing
- 3D surface contouring
- Recessed and curved-surface machining
- Small-feature precision finishing
Workpiece Materials
Carbon steel, alloy steel and suitable mold steels within the confirmed application range.
Micro Long-Neck End Mill Series – Ball Nose & Square End
Application Note: Use the shortest suitable neck reach and tool overhang to minimize deflection during deep-cavity finishing.
Technical Specifications
Reference specifications for HRC55 2-flute solid carbide long-neck ball nose end mills.
| Parameter | Specification |
|---|---|
| Material | Solid Carbide |
| Series | HRC55 |
| End Profile | Ball Nose |
| Flutes | 2 Flutes |
| Ball Radius | R0.1–R1.5 mm |
| Cutting Diameter | Ø0.2–Ø3.0 mm |
| Length Options | 1–20 mm, depending on size |
| Shank Diameter | Ø4 mm |
| Overall Length | 50 mm |
| Coating | Application-Matched Options |
Tool Dimensions
Available Sizes
Reference ball radius, cutting diameter and length combinations. All dimensions in mm.
| Ball Radius (R) | Cutting Dia. (D) | Length Options* | Shank (d) | OAL (L) |
|---|---|---|---|---|
| R0.1 | 0.2 | 1 / 2 | 4 | 50 |
| R0.15 | 0.3 | 1 / 2 / 3 / 4 | 4 | 50 |
| R0.2 | 0.4 | 1 / 2 / 3 / 4 / 5 / 6 | 4 | 50 |
| R0.25 | 0.5 | 2 / 3 / 4 / 5 / 6 / 8 | 4 | 50 |
| R0.3 | 0.6 | 2 / 3 / 4 / 5 / 6 / 8 | 4 | 50 |
| R0.4 | 0.8 | 2 / 3 / 4 / 5 / 6 / 8 / 10 | 4 | 50 |
| R0.5 | 1.0 | 4 / 5 / 6 / 8 / 10 / 12 / 14 / 16 / 20 | 4 | 50 |
| R0.75 | 1.5 | 6 / 8 / 10 / 12 / 14 / 16 / 20 | 4 | 50 |
| R1.0 | 2.0 | 6 / 8 / 10 / 12 / 14 / 16 / 20 | 4 | 50 |
| R1.5 | 3.0 | 10 / 12 / 16 / 20 | 4 | 50 |
Custom Long-Neck Ball Nose End Mills
Custom ball radii, neck lengths, cutting geometry and coatings are available for OEM orders.
Ball Radius & Diameter | Neck Diameter & Reach | Flute Geometry & Coating | Custom Tolerances
OEM & Private Label Services
OEM cutting tool supply for distributors and tooling brands, with custom identification, packaging and repeat-order support.
Quality, Inspection & Delivery
HY ensures consistent quality through material verification, precision grinding and final inspection of dimensions, cutting edges and coatings.
HRC55 Long Neck Ball Nose End Mill FAQ
Answers on tool selection, steel machining, available sizes and OEM orders.
What is this long neck ball nose end mill best used for?
Why choose a 2-flute long neck ball nose end mill?
What steel grades can the HRC55 ball nose end mill machine?
How do I choose the ball radius and neck length?
How can deflection be reduced in deep-cavity milling?
What standard sizes are available?
Are custom sizes, samples and OEM options available?
What information is required for a quotation?
Need Sizes, Pricing or Custom Options?
Send your specifications and quantity for a quote.
- Standard Sizes
- Small Trial Orders
- Mixed Sizes
- OEM & Custom
View QR Code – Contact Sales on WeChat
Scan to contact us on WeChat.
Scan to contact us on WeChat.
