HRC65 2-Flute Solid Carbide Ball Nose End Mill for Hardened Steel
Hochpräziser 2-Schneiden-Vollhartmetall-Kugelkopffräser mit 65°-Geometrie und Nanobeschichtung. Ermöglicht reibungsloses 3D-Fräsen, stabiles Schneiden und OEM-Anpassung.
⚙️ Produktkonfigurationen
*Flöten: 2 Flöte
*Geometrie: 65° (wie angegeben)
*Anwendung: 3D-Konturieren, Profilieren, Schlichten und Halbschlichten
*Helix-Winkel: 30° / 35° / 45° (wahlweise)
*Toleranz: h6 / kundenspezifische Toleranzen verfügbar
*Beschichtung: Nano coating for improved wear resistance and tool life
*Tool Material: Ultra-fine grain solid carbide for high precision machining
*Werkstück Materialien: Hardened steel, mold steel, alloy steel and general steel
*Anpassung: Custom diameter, radius, flute length, overall length and coating options available
Consistent Quality
Consistent geometry across repeat orders.
Flexible Bestellungen
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
Standard und Sonderanfertigungen
Standard sizes and custom configurations.
HRC65 2-Flute Solid Carbide Ball Nose End Mill Overview
This HRC65 2-flute solid carbide ball nose end mill is designed for 3D contouring, mold-cavity machining, profiling and fine surface finishing in hardened tool and mold steels up to HRC65. Its ultra-fine-grain carbide substrate supports edge strength and wear resistance, while the two-flute geometry provides chip space and lower cutting resistance in deep or complex profiles. The full-radius cutting edge follows curved surfaces, and a high-temperature coating protects the tool during high-hardness machining.
Key Configuration
Full-Radius Ball Nose
Maintains progressive cutting contact on curved surfaces, cavities, fillets and complex 3D profiles.
Two-Flute Geometry
Balances cutting-edge support with chip space for semi-finishing and finishing operations.
HRC65-Matched Substrate & Coating
Ultra-fine-grain carbide and a high-temperature coating support edge retention in selected steels up to HRC65.
Key Product Advantages
Smooth 3D Toolpaths
The ball profile supports continuous contact when following curved and free-form surfaces.
Stable Chip Evacuation
Two flutes provide chip space without giving up the edge support required for steel finishing.
Hardened-Steel Capability
Configured for light semi-finishing and finishing in selected heat-treated steels up to HRC65.
High-Temperature Protection
TiSiN or AlTiSiN-type coating options help protect the cutting edge under elevated cutting temperatures.
Milling Operations
Mold Cavity Milling
Profile Milling
Semi-Finishing
Surface Finishing
Workpiece Material Compatibility
| MATERIAL GROUP | EXAMPLES | APPLICATION LEVEL |
|---|---|---|
| H Hardened Tool Steel | Heat-treated tool steels within the confirmed hardness range | Primary application |
| H Hardened Mold Steel | Hardened mold and die steels up to HRC65 | Primary application |
| P Alloy Steel | Selected high-alloy and heat-treated steels | Confirm grade and hardness |
Product Details & Milling Demonstration
Detailed product views and a machining demonstration of the HRC65 2-flute solid carbide ball nose end mill for hardened steel.
Tool Nomenclature & Dimensions
Reference dimensional nomenclature and standard configurations for the HRC65 2-flute solid carbide ball nose end mill for hardened steel. All listed dimensions are in millimeters.
Technical Configuration
| TECHNICAL ITEM | SPECIFICATION |
|---|---|
| Werkzeug-Typ | Solid carbide ball nose end mill |
| End Profile | Ball Nose / Full Radius |
| Flöte zählen | 2 Flöten |
| Series Positioning | HRC65 Hardened-Steel Finishing Series |
| Werkzeug Material | Ultra-Fine-Grain Solid Carbide |
| Carbide Reference Data | 0.4 μm grain size; 12% Co; flexural strength 4300 N/mm² (supplier reference data) |
| Beschichtungsoptionen | TiSiN / AlTiSiN / TiAlN or application-specific high-temperature coating |
| Helix Angle Options | 30° / 35° / 45° |
| Gesamtlänge | 50–150 mm reference range; selected custom configurations up to 200 mm after rigidity review |
| Primary Operations | 3D contouring, profiling, cavity machining, semi-finishing and finishing |
| Cutting Direction | Right-Hand Cutting |
| Coolant Method | Air Blow / Oil Mist / External Coolant According to Application |
Standard Size Matrix
Reference standard sizes retained from the original product information. Select by ball radius, flute length, shank diameter and overall length. Drawing-based non-standard sizes can be reviewed separately.
| SPECIFICATION | R | DC / D | APMX / L1 | DCON / d | OAL / L | FLUTES |
|---|---|---|---|---|---|---|
| R0.5×2×D4×50L | 0.5 | 1 | 2 | 4 | 50 | 2 |
| R0.75×3×D4×50L | 0.75 | 1.5 | 3 | 4 | 50 | 2 |
| R1×4×D4×50L | 1 | 2 | 4 | 4 | 50 | 2 |
| R1.25×5×D4×50L | 1.25 | 2.5 | 5 | 4 | 50 | 2 |
| R1.5×6×D3×50L | 1.5 | 3 | 6 | 3 | 50 | 2 |
| R1.5×6×D3×75L | 1.5 | 3 | 6 | 3 | 75 | 2 |
| R1.5×6×D3×100L | 1.5 | 3 | 6 | 3 | 100 | 2 |
| R1.5×6×D4×50L | 1.5 | 3 | 6 | 4 | 50 | 2 |
| R1.5×6×D6×50L | 1.5 | 3 | 6 | 6 | 50 | 2 |
| R1.75×7×D4×50L | 1.75 | 3.5 | 7 | 4 | 50 | 2 |
| R2×8×D4×50L | 2 | 4 | 8 | 4 | 50 | 2 |
| R2×8×D4×75L | 2 | 4 | 8 | 4 | 75 | 2 |
| R2×8×D4×100L | 2 | 4 | 8 | 4 | 100 | 2 |
| R2.5×10×D5×50L | 2.5 | 5 | 10 | 5 | 50 | 2 |
| R2.5×10×D5×75L | 2.5 | 5 | 10 | 5 | 75 | 2 |
| R2.5×10×D5×100L | 2.5 | 5 | 10 | 5 | 100 | 2 |
| R2.5×10×D6×50L | 2.5 | 5 | 10 | 6 | 50 | 2 |
| R3×12×D6×50L | 3 | 6 | 12 | 6 | 50 | 2 |
| R3×12×D6×75L | 3 | 6 | 12 | 6 | 75 | 2 |
| R3×12×D6×100L | 3 | 6 | 12 | 6 | 100 | 2 |
| R3×12×D6×150L | 3 | 6 | 12 | 6 | 150 | 2 |
| R3.5×14×D8×60L | 3.5 | 7 | 14 | 8 | 60 | 2 |
| R4×16×D8×60L | 4 | 8 | 16 | 8 | 60 | 2 |
| R4×16×D8×75L | 4 | 8 | 16 | 8 | 75 | 2 |
| R4×16×D8×100L | 4 | 8 | 16 | 8 | 100 | 2 |
| R4×16×D8×150L | 4 | 8 | 16 | 8 | 150 | 2 |
| R4.5×18×D10×75L | 4.5 | 9 | 18 | 10 | 75 | 2 |
| R5×20×D10×100L | 5 | 10 | 20 | 10 | 100 | 2 |
| R5×20×D10×150L | 5 | 10 | 20 | 10 | 150 | 2 |
| R5.5×22×D12×75L | 5.5 | 11 | 22 | 12 | 75 | 2 |
| R6×24×D12×75L | 6 | 12 | 24 | 12 | 75 | 2 |
| R6×24×D12×100L | 6 | 12 | 24 | 12 | 100 | 2 |
| R6×24×D12×150L | 6 | 12 | 24 | 12 | 150 | 2 |
| R7×28×D14×80L | 7 | 14 | 28 | 14 | 80 | 2 |
| R7×28×D14×100L | 7 | 14 | 28 | 14 | 100 | 2 |
| R7×28×D14×150L | 7 | 14 | 28 | 14 | 150 | 2 |
| R8×32×D16×100L | 8 | 16 | 32 | 16 | 100 | 2 |
| R8×32×D16×150L | 8 | 16 | 32 | 16 | 150 | 2 |
| R9×36×D18×100L | 9 | 18 | 36 | 18 | 100 | 2 |
| R9×36×D18×150L | 9 | 18 | 36 | 18 | 150 | 2 |
| R10×40×D20×100L | 10 | 20 | 40 | 20 | 100 | 2 |
| R10×40×D20×150L | 10 | 20 | 40 | 20 | 150 | 2 |
Recommended Starting Cutting Parameters
The values below are starting references from the original product information. Optimize them according to cutter diameter, effective cutting diameter on the ball profile, tool overhang, holder runout, machine rigidity and coolant conditions.
| WORKPIECE RANGE | VC (m/min) | FZ (mm/tooth) | AP | AE | REFERENCE USE |
|---|---|---|---|---|---|
| Hardened Tool & Mold Steel — HRC55–HRC65 | 80–120 | 0.015–0.03 | 0.2–0.4 × D | 0.03–0.15 × D | Light Semi-Finishing / Finishing |
HRC65 Ball Nose End Mill Application Guidance
- 3D Finishing: Select step-over according to the ball radius, required cusp height and target surface finish.
- Tool Center: Cutting speed approaches zero at the center of the ball; use suitable tool inclination or toolpath strategy where possible.
- Extended Reach: Reduce radial engagement and feed when using long overall lengths or increased tool overhang.
- Toolholding: Use a clean, low-runout precision holder and keep unnecessary overhang to a minimum.
- Hardness Verification: Confirm the workpiece grade and actual hardness before machining near the HRC65 application limit.
HRC55 2-Flute Square End Mill Customization
Cutting diameter, flute length, overall length, helix angle, square-end geometry, cutting-edge preparation and coating can be configured for steel-milling applications. Standard configurations use a 2-flute design with 35° or 38° helix options, while non-standard dimensions and selected geometry adjustments can be reviewed according to the workpiece grade, hardness, milling operation, tool engagement and required dimensional accuracy.
| PARAMETER | MANUFACTURING CAPABILITIES |
|---|---|
| Cutting Diameter | Standard Ø1–Ø20 mm range, with selected intermediate and non-standard diameters reviewed according to the drawing |
| Flöte zählen | Standard 2-flute configuration with generous chip space for slotting, side milling and shoulder-milling applications |
| Flute & Overall Length | Standard, long-series and drawing-defined flute, reach and overall-length configurations |
| Shank Configuration | Precision cylindrical shank with standard or drawing-defined shank diameter and clamping length |
| Helix-Winkel | 35° or 38° standard helix options selected according to the steel grade, chip formation and milling operation |
| Square-End Geometry | Flat-bottom square-end profile for slots, pockets and 90° shoulders, with center-cutting capability confirmed by specific configuration |
| Edge Preparation | Application-matched cutting-edge preparation, end-face grinding, gash geometry and corner condition reviewed according to the steel hardness and cutting load |
| Coating Selection | AlTiN, TiSiN or application-specific coating selected according to the steel grade, hardness, cutting temperature and coolant conditions |
| Milling Application | Geometry can be reviewed for slotting, side milling, shoulder milling, semi-finishing and selected finishing operations |
| Dimensional Tolerance | Drawing-defined requirements for cutting diameter, flute length, shank diameter, overall length, runout and square-end geometry |
OEM- und Eigenmarken-Dienstleistungen
OEM manufacturing and private-label supply options are available for industrial distributors, tooling brands and repeat-production customers. Laser identification, label content, protective packaging and coating presentation can be configured according to the approved product specification and order requirements.
Laser Etching
Custom logos, tool codes, cutting dimensions, coating identification and batch numbers can be marked according to the available shank area.
Custom Labels & Packaging
Individual protective tubes, product labels, specification details, colored packaging tubes and private-label packaging can be reviewed.
Commercial Terms
MOQ, sample evaluation, custom-size trials, repeat orders and scheduled supply programs are confirmed according to the selected configuration.
Technical Workflow
A structured review process is used to confirm standard, customized and private-label square end mill requirements before production.
Inquiry
Submit the material, hardness, milling operation, dimensions, tolerance and quantity.
Engineering
Review flute geometry, helix angle, edge preparation, coating, ap and ae.
Commercial
Confirm quotation, MOQ, sample requirements, production schedule and delivery terms.
Production
CNC grinding, end-face formation, edge preparation, coating and laser marking.
Qualitätskontrolle
Inspect diameter, flute length, shank, runout, square-end geometry and cutting edges.
Quality, Inspection & Delivery
Our solid carbide square end mills are controlled through material verification, precision grinding, in-process measurement and final inspection. Key dimensions, square-end geometry, cutting-edge condition, coating appearance and product identification are reviewed according to the approved specification or drawing before packing.

Three-Stage Quality Control
Inspection checkpoints are arranged around the manufacturing process to support dimensional consistency and repeat-order control.
Incoming Material Control
Carbide substrate grade, blank dimensions and supplied material information are checked against the production requirement.
In-Process Grinding Control
Cutting diameter, flute geometry, flute length, square-end profile and shank dimensions are monitored during CNC grinding.
Final Tool Inspection
Finished tools are reviewed for specified dimensions, runout, cutting-edge condition, coating appearance, marking and packing identification.
Key Inspection Characteristics
Inspection requirements are confirmed according to the standard product specification or the approved custom drawing.
| INSPECTION ITEM | CONTROL FOCUS | CONFIRMATION BASIS |
|---|---|---|
| Cutting Diameter (DC) | Diameter and dimensional consistency | Standard specification or approved drawing |
| Flute Length (APMX) | Effective cutting length | Confirmed product size or drawing requirement |
| Shank Diameter (DCON) | Clamping-section dimension and surface condition | Applicable shank specification |
| Overall Length (OAL) | Total tool length | Standard size matrix or approved drawing |
| Radial Runout | Concentricity between cutting section and shank | Agreed inspection requirement |
| Square-End Geometry | End-face profile, corner condition and center-cutting form | Selected tool configuration |
| Flute & Helix Profile | Flute count, helix form and grinding consistency | Approved manufacturing configuration |
| Cutting Edge & Coating | Edge condition, visible defects and coating appearance | Application-specific production requirement |
| Marking & Identification | Tool code, dimensions and batch information where applicable | Confirmed order and packaging specification |
Measurement & Batch Traceability
Optical measuring systems, tool inspection equipment and appropriate dimensional gauges are selected according to the feature being checked.
Optical Measurement
Profile and dimensional review of specified cutting features.
Runout Verification
Concentricity review based on the agreed product requirement.
Edge Inspection
Magnified review of the end face, corners and cutting-edge condition.
Batch Identification
Order, product and batch information are linked where required for repeat supply.
Protective Packaging Process
Finished end mills are protected to reduce contact between cutting edges and to support clear product identification during storage and transportation.

Bulk-Order & Export Packaging
Bulk shipments can be arranged with reinforced cartons, protective wrapping, palletized loading or export cases according to order quantity, shipment weight and agreed transportation requirements.

Delivery Coordination
Production completion, packing method and dispatch arrangements are confirmed according to the approved order. Courier, air, sea or customer-designated shipping options can be reviewed according to shipment size and destination. Final lead time is confirmed after product specifications, quantity and packaging requirements are approved.
Product & Application FAQs
Answers to common questions about selecting and applying the HRC65 2-Flute Solid Carbide Ball Nose End Mill for Hardened Steel.
What materials is this ball nose end mill designed to machine?
What operations are suitable for the ball-nose profile?
How should step-over be selected for surface finishing?
Can the tool cut at the center of the ball nose?
What affects ball-radius and profile accuracy?
Does HRC65 guarantee machining of every steel at exactly 65 HRC?
Ordering & Customization FAQs
Information for distributors, tooling brands and customers requesting standard or application-specific ball-nose configurations.
What standard sizes are available?
Can non-standard dimensions or geometry be manufactured?
Are OEM marking and private-label packaging available?
What information is required for an accurate quotation?
Technical Downloads
Use the following references for product selection and starting cutting-data review.
Solid Carbide End Mill Catalog
Review related ball-nose, square-end, corner-radius and application-specific end mill series.
End Mill Speeds & Feeds Guide
Access reference starting parameters for application review and controlled machining trials.
Need a Size or Application Review?
Send the steel grade and verified hardness, required dimensions, machining operation and quantity for configuration and quotation review.
Need Sizes, Pricing or Custom Options?
Send us the required tool type, sizes, quantities, workpiece material and any OEM or custom requirements. We will confirm suitable specifications, availability, lead time and quotation details.
Drawings, size lists and reference photos are welcome.












