HRC45 / HRC55 2-Flute Solid Carbide Tapered Ball Nose End Mill for Mold Machining
HRC45 / HRC55 2-flute solid carbide tapered ball nose end mills for 3D mold machining, deep cavities and curved-surface finishing in steel, alloy steel and mold steel.
⚙️ Configurações de produtos
*Hardness Grades: HRC45 / HRC55
*Flute Count: 2 Flutes
*Tool Type: Tapered Ball Nose End Mill
*Opções de revestimento: AlTiN / TiSiN (defined by hardness grade and application)
*Materiais de aplicação: Carbon steel / alloy steel / mold steel / cast iron
*Machining Type: 3D contouring / mold finishing / deep-cavity machining
*MOQ: 10 pcs
*Stock Lead Time: 1–3 days
Consistent Quality
Consistent geometry across repeat orders.
Pedidos flexíveis
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
Padrão e personalizado
Standard sizes and custom configurations.
HRC45 / HRC55 2-Flute Solid Carbide Tapered End Mill Overview
This 2-flute solid carbide tapered ball nose end mill combines a spherical cutting tip with a gradually enlarged tapered body for deep mold cavities, narrow ribs, drafted walls, fillets and complex 3D surfaces. Compared with a uniformly slender straight-neck tool, the tapered core provides additional support behind the cutting tip while maintaining clearance along sloped cavity walls. HRC45 and HRC55 configurations are available for carbon steel, alloy steel, tool steel and pre-hardened mold steel. Ball radius, taper angle, cutting length, effective reach, shank diameter, overall length, carbide grade and coating can be selected according to the mold geometry.
HRC45 / HRC55
Tapered Ball Nose
2 Flutes
3D Mold Finishing
Key Features and Machining Benefits
Tapered Core Rigidity
The gradually enlarged body provides additional support behind the ball tip and helps control deflection during extended-reach finishing.
Drafted-Wall Clearance
The tapered profile can follow drafted mold walls and reach recessed regions while reducing interference with adjacent surfaces.
Continuous Ball-Nose Contact
The spherical tip supports smooth tool movement across fillets, slopes, freeform contours and blended 3D mold surfaces.
Two-Flute Chip Space
The 2-flute geometry provides chip space and controlled cutting resistance for small radii, long reach and light finishing passes.
Mold-Machining Applications
- Deep mold cavities and recessed 3D surfaces
- Narrow ribs, channels and internal fillets
- Drafted walls and sloped cavity surfaces
- Mold cores, inserts, electrodes and die profiles
- Freeform surfaces and complex contour transitions
- Semi-finishing and finishing with controlled remaining stock
P Carbon Steel
P Alloy Steel
P Tool Steel
H Pre-Hardened Mold Steel
Tapered Ball Nose End Mill Details
Mold-Finishing Guidance
- Remove most stock with a square-end or corner-radius cutter before finishing.
- Maintain a consistent remaining allowance to avoid sudden cutting-load changes.
- Select stepover according to the ball radius and required cusp height.
- Use the shortest practical tool overhang and maintain low holder runout.
- Where possible, move the cutting contact away from the exact center of the ball tip.
Tapered Ball Nose End Mill Technical Specifications
Tapered ball nose dimensions must be selected as a complete geometry rather than by ball radius alone. Confirm the ball radius, taper angle, cutting length, effective reach, maximum tapered diameter, shank diameter and overall length against the mold CAD model or dimensional drawing.
| PARAMETER | PRODUCT CONFIGURATION |
|---|---|
| Tipo de ferramenta | Solid carbide tapered ball nose end mill for deep-reach 3D mold contouring and finishing |
| Hardness Series | HRC45 and HRC55 configurations selected according to the actual workpiece material and hardness |
| Carbide Substrate | Fine-grain or ultra-fine-grain solid carbide selected for edge strength, wear resistance and long-reach rigidity |
| Contagem de flautas | Standard 2-flute geometry providing chip space and controlled cutting pressure for small-radius and extended-reach finishing |
| Raio da esfera | Standard or drawing-defined radius selected according to the smallest internal fillet, contour detail and required cusp height |
| Ângulo de conicidade | Model-specific or custom taper angle selected according to mold draft, cavity-wall clearance and required tool-core rigidity |
| Comprimento de corte | Standard or drawing-defined cutting length configured according to the active cutting area and mold-surface geometry |
| Effective Reach | Selected according to cavity depth, restricted access, adjacent walls and holder-clearance requirements |
| Configuração da haste | Precision cylindrical shank with standard or drawing-defined diameter and clamping length |
| Comprimento total | Standard and extended overall lengths available according to the required machining reach and machine clearance |
| Cutting-Edge Geometry | Rake angle, relief geometry, gash profile and ball-tip transition matched to mold steel hardness and finishing load |
| Coating Selection | AlTiN, TiAlN, TiSiN or application-specific coating selected according to workpiece hardness, cutting temperature and coolant conditions |
| Workpiece Materials | Carbon steel, alloy steel, tool steel and pre-hardened mold steel within the confirmed HRC45–HRC55 application range |
| Primary Operations | Deep-cavity contouring, drafted-wall machining, fillet finishing, narrow-rib machining and freeform 3D surface finishing |
| Dimensional Tolerance | Drawing-defined control of ball radius, taper angle, cutting length, effective reach, shank diameter, overall length and tool runout |
Dimensions and Size Reference
Geometry Selection Guide
| GEOMETRY ITEM | SELECTION FUNCTION |
|---|---|
| Raio da esfera | Controls the smallest accessible concave feature and influences the cusp height produced at a selected stepover |
| Ângulo de conicidade | Controls the increase in tool-body diameter, wall clearance and support provided behind the ball tip |
| Effective Reach | Determines whether the cutting tip can reach the required cavity surface without holder or shank interference |
| Comprimento total | Must provide sufficient machine and workpiece clearance without introducing unnecessary tool overhang |
| Carbide & Coating | Selected according to the actual steel grade, workpiece hardness, cutting temperature, coolant method and required tool life |
HRC45 / HRC55 Tapered End Mill Customization
Ball radius, taper angle, cutting length, effective reach, maximum tapered diameter, shank diameter, overall length, carbide grade, cutting-edge preparation and coating can be configured for mold-machining applications. Standard configurations use a 2-flute tapered ball-nose geometry for deep cavities, drafted walls, narrow ribs, internal fillets and complex 3D surfaces. Drawing-defined non-standard tools can be reviewed according to the mold CAD model, workpiece grade, hardness, cavity depth, wall clearance, tool engagement and required surface finish.
| PARAMETER | MANUFACTURING CAPABILITIES |
|---|---|
| Raio da esfera | Standard and drawing-defined ball radii can be manufactured according to the smallest internal fillet, mold-detail size, stepover and required cusp height |
| Ângulo de conicidade | Model-specific and custom taper angles can be reviewed according to the mold draft angle, adjacent-wall clearance, effective reach and required tool-core rigidity |
| Contagem de flautas | Standard 2-flute geometry providing chip space and controlled cutting resistance for small-radius, extended-reach and light-finishing operations |
| Comprimento de corte | Standard or drawing-defined cutting lengths configured according to the active cutting area, cavity geometry and required axial engagement |
| Effective Reach | Standard and extended-reach configurations can be produced according to the cavity depth, recessed surface, drafted wall and holder-clearance requirements |
| Maximum Tapered Diameter | The maximum body diameter is calculated from the ball radius, taper angle and tapered length, and must be checked against surrounding mold surfaces to prevent interference |
| Configuração da haste | Precision cylindrical shank with standard or drawing-defined shank diameter, clamping length and transition geometry |
| Comprimento total | Standard and extended overall lengths can be manufactured according to the required machining reach, machine clearance and holder configuration |
| Hardness Series | HRC45 and HRC55 tool configurations selected according to the actual mold-steel grade, heat treatment and workpiece hardness |
| Carbide Grade | Fine-grain or ultra-fine-grain solid carbide selected to balance cutting-edge wear resistance, toughness and long-reach tool rigidity |
| Ball-Nose Geometry | Precision-ground spherical cutting tip with application-matched center geometry, flute transition and relief profile for continuous 3D surface contact |
| Cutting-Edge Preparation | Rake angle, relief geometry, gash profile, edge preparation and ball-tip transition can be matched to the mold-steel hardness, remaining stock and finishing load |
| Coating Selection | AlTiN, TiAlN, TiSiN or application-specific coating selected according to the steel grade, workpiece hardness, cutting temperature, coolant conditions and required tool life |
| Workpiece Materials | Application-specific configurations for carbon steel, alloy steel, tool steel and pre-hardened mold steel within the confirmed HRC45–HRC55 hardness range |
| Mold-Machining Application | Geometry can be reviewed for deep-cavity contouring, drafted-wall machining, narrow ribs, internal fillets, mold inserts, electrodes and complex 3D finishing |
| Dimensional Tolerance | Drawing-defined control of ball radius, taper angle, cutting length, effective reach, maximum tapered diameter, shank diameter, overall length and tool runout |
| OEM & Private Label | Custom laser marking, tool codes, radius and taper identification, coating presentation, specification labels, protective tubes and private-label packaging are available |
Serviços de OEM e marca própria
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.
Quality Control
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 |
| Deslocamento radial | 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.
HRC45 / HRC55 Tapered Ball Nose End Mill FAQ
Find answers about taper-angle selection, ball radius, mold-machining applications, workpiece hardness, cutting strategy, custom dimensions, samples, lead time and OEM supply.
What is a tapered ball nose end mill?
Does HRC45 / HRC55 indicate the taper angle?
What mold-machining operations is this tool suitable for?
Why use a tapered body instead of a straight-neck ball nose?
How should the ball radius be selected?
How should the taper angle be selected?
Why does this tool use a 2-flute design?
Which materials can the HRC45 / HRC55 versions machine?
Is this version suitable for aluminum?
Which coating should be selected?
Can this cutter be used for roughing?
Can it machine undercuts?
How can chatter and tool deflection be reduced?
How can the final surface finish be improved?
Can you manufacture custom ball radii and taper angles?
Can I order samples before bulk production?
What is the production lead time?
Do you provide OEM and private-label services?
What information is required for a quotation?
Technical Downloads
Download general references for solid carbide end mill selection, mold machining and starting cutting parameters.
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.
