4-Flute Solid Carbide Internal Corner-Rounding and Chamfering End Mill
- ◆Precision-ground radius profile provides accurate and repeatable edge geometry
- ◆4-flute balanced design improves rigidity and surface finish
- ◆Solid carbide construction provides excellent edge strength and wear resistance
Custom radius, cutting diameter, flute length, shank size, coating, laser marking and packaging are available for OEM and ODM orders.
Consistent Quality
Consistent geometry across repeat orders.
سفارشهای انعطافپذیر
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
استاندارد و سفارشی
Standard sizes and custom configurations.
Combination Carbide Internal End Mill Overview
This 4-flute solid carbide combination end mill integrates radius-forming and chamfering geometry into one tool for components that require both rounded transitions and edge chamfers. The combined cutting profile allows compatible radius and chamfer features to be machined within one tooling setup, making the cutter suitable for mold cavities, precision mechanical components, valve bodies and other parts with multi-feature edge geometry. The 4-flute solid carbide construction provides a rigid cutting platform, while radius, chamfer angle, tool dimensions and coating can be selected according to the workpiece material and component drawing.
Combination Profile
4 Flutes
R1–R6 mm
30° / 45° / 60°
Combination Radius & Chamfer Geometry
Radius-Forming Profile
The formed cutting section produces the specified radius or rounded transition according to the component geometry and required profile.
Integrated Chamfering Edge
The chamfering section can be configured for 30°, 45°, 60° or drawing-defined edge geometry where radius and chamfer features are required together.
Single-Tool Combination Machining
Combining the radius and chamfer features in one cutter can reduce separate tooling operations when the component geometry and machining sequence are suitable.
Application-Specific Advantages
Combined Operations
Radius forming and chamfering can be integrated into one application-specific cutting profile.
4-Flute Geometry
Four cutting edges support repeated engagement during combined profile machining.
Flexible Chamfer Geometry
30°, 45° and 60° chamfer configurations cover common edge-forming requirements.
Custom Combination Profile
Radius, chamfer angle, feature position, diameter and length can be reviewed from drawings.
Recommended Machining Operations
RECOMMENDED
RECOMMENDED
SUITABLE
SUITABLE
Workpiece Material Compatibility
| MATERIAL GROUP | APPLICATION | LEVEL |
|---|---|---|
| P Mold & Tool Steel | Combination radius and chamfer machining | Primary |
| M Stainless Steel | Application-specific coating and cutting conditions required | Application Review |
| N Aluminum Alloys | Material-specific sharp geometry and coating configuration | Suitable |
| Engineering Plastics | Application-specific profile and cutting-edge geometry | Application Review |
Product & Machining Video
Tool Nomenclature & Dimensions
Reference dimensions for the 4-flute solid carbide combination corner-rounding and chamfering end mill. The radius, chamfer geometry and their axial relationship should be confirmed together because both cutting features are integrated into one tool. A component drawing is recommended for non-standard combination profiles.
Technical Configuration
| PARAMETER | REFERENCE CONFIGURATION |
|---|---|
| Tool Type | Combination Corner-Rounding & Chamfering End Mill |
| Tool Material | Solid Carbide |
| Flute Count | 4 Flutes |
| Primary Function | Radius Forming + Edge Chamfering |
| Standard 4-Flute Radius Range | R1 / R1.5 / R2 / R2.5 / R3 / R4 / R5 / R6 mm |
| Smaller Radius Options | Smaller radii can be reviewed separately according to flute configuration and application requirements |
| Chamfer Angles | 30° / 45° / 60°; custom angles subject to technical review |
| Diameter Range | Ø3–Ø16 mm reference product range |
| Helix Geometry | 38°–42° variable-helix reference configuration |
| Coating Options | TiAlN / AlTiN / DLC — selected according to workpiece material and application |
| Application Materials | Mold Steel / Stainless Steel / Aluminum Alloys / Engineering Plastics according to selected configuration |
| Customization | Radius, chamfer angle, chamfer width, feature position, cutter dimensions, shank, overall length and coating can be reviewed according to drawings. |
Standard 4-Flute Radius Size Matrix
Reference 4-flute dimensions for the radius-forming section. The chamfer geometry should be confirmed separately according to the required combination profile.
| SPECIFICATION | RADIUS R | SHANK DIA. d | OVERALL LENGTH L | FLUTES |
|---|---|---|---|---|
| R1 × 4 × 50 × 4T | 1 | 4 | 50 | 4 |
| R1.5 × 6 × 50 × 4T | 1.5 | 6 | 50 | 4 |
| R2 × 6 × 50 × 4T | 2 | 6 | 50 | 4 |
| R2.5 × 8 × 50 × 4T | 2.5 | 8 | 50 | 4 |
| R3 × 8 × 50 × 4T | 3 | 8 | 50 | 4 |
| R4 × 10 × 60 × 4T | 4 | 10 | 60 | 4 |
| R5 × 12 × 75 × 4T | 5 | 12 | 75 | 4 |
| R6 × 14 × 75 × 4T | 6 | 14 | 75 | 4 |
Combination Machining Guidance
- Profile Matching: Confirm both the radius and chamfer dimensions from the component drawing before selecting or manufacturing the cutter.
- Axial Position: The relationship between the radius and chamfer features depends on accurate cutter positioning and the axial spacing built into the tool profile.
- Toolholding: Use a low-runout precision holder and the shortest practical overhang to maintain profile consistency.
- Material Configuration: Select cutting-edge preparation and coating according to the actual steel, stainless, aluminum or plastic grade.
- Custom Tools: For non-standard combination profiles, provide a component drawing showing the radius, chamfer angle, chamfer width and axial feature positions.
Combination Internal End Mill Customization
Radius size, chamfer angle, chamfer width, combination-profile geometry, feature position, cutter dimensions, shank configuration, overall length, cutting-edge preparation and coating can be configured according to the component drawing and machining application. Standard 4-flute configurations cover R1–R6 mm radius sizes, while 30°, 45° and 60° chamfer angles are available as reference options. Non-standard combination profiles can be reviewed according to the workpiece material, required radius-to-chamfer relationship, machining depth, feature clearance and dimensional requirements.
| PARAMETER | MANUFACTURING CAPABILITIES |
|---|---|
| Radius Size | Current standard 4-flute configurations include R1, R1.5, R2, R2.5, R3, R4, R5 and R6 mm. Smaller or non-standard radii can be reviewed separately according to the required profile and flute configuration. |
| Chamfer Angle | 30°, 45° and 60° chamfer angles are available as reference configurations. Non-standard angles can be reviewed according to the component drawing and required edge geometry. |
| Chamfer Width | Chamfer width can be configured according to the finished component requirement, cutter diameter and available profile length. |
| Combination Profile | Radius-forming and chamfering sections can be integrated into one cutting profile. The relationship between both features should be defined from the component drawing for accurate tool design. |
| Feature Position & Spacing | Axial position and spacing between the radius and chamfer features can be reviewed according to the workpiece geometry, machining depth and required transition position. |
| Flute Count | Standard 4-flute solid carbide configuration for combination profile machining. |
| Cutter Diameter | Reference product diameter range is Ø3–Ø16 mm. Non-standard cutter dimensions can be reviewed according to the required radius, chamfer geometry and component clearance. |
| Helix Geometry | A 38°–42° variable-helix configuration is available as a reference design. Final helix geometry can be selected according to workpiece material, chip evacuation and cutting engagement. |
| Shank Configuration | Precision cylindrical shank dimensions can be selected according to tool size, holder compatibility, clamping length and required machining reach. |
| Overall Length | Standard and drawing-defined overall lengths can be reviewed according to machining depth, toolholder clearance and required tool rigidity. |
| Cutting-Edge Preparation | Radius-forming edges, chamfering edges, relief geometry and edge preparation can be matched to the workpiece material, cutting load and required profile finish. |
| Coating Selection | TiAlN, AlTiN or DLC configurations can be reviewed according to workpiece material and machining conditions. Steel and stainless-steel applications normally require a different coating strategy from aluminum and other non-ferrous materials. |
| Workpiece Material | Configurations can be reviewed for mold steel, stainless steel, aluminum alloys and selected engineering plastics. Cutting geometry and coating should be matched to the actual material rather than using one universal configuration. |
| Machining Application | Suitable configurations can be developed for combined radius forming, edge chamfering, profile finishing, cavity-edge machining and other multi-feature operations. |
| Profile & Dimensional Tolerance | Drawing-defined requirements can be reviewed for radius geometry, chamfer angle, chamfer width, feature spacing, cutter diameter, shank diameter, overall length and tool runout. |
| Replacement Tool Matching | Existing combination cutters can be reviewed from a detailed tool drawing or physical sample when an equivalent or replacement specification is required. |
| OEM & Private Label | Laser marking, custom tool codes, private labels and packaging can be reviewed for distributors and OEM customers according to tool dimensions and order quantity. |
خدمات OEM و برند خصوصی
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 |
| 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
Common questions about the 4-Flute Solid Carbide Combination Corner-Rounding and Chamfering End Mill for integrated radius forming, edge chamfering and profile machining.
What makes this a combination end mill?
What standard radius sizes are available in the 4-flute configuration?
Which chamfer angles are available?
What is the advantage of machining the radius and chamfer with one tool?
Which materials can this combination cutter machine?
How should I select the coating?
How is the relationship between the radius and chamfer controlled?
Ordering & Customization FAQs
Ordering information for distributors, tooling suppliers and OEM customers requiring standard or customized combination radius and chamfer cutters.
Can the radius and chamfer geometry be customized together?
Can you manufacture a replacement tool from an existing drawing or sample?
Can the diameter and overall length be customized?
Are OEM marking and private-label packaging available?
زمان تحویل معمول چقدر است؟
What information should I provide for quotation?
Technical Downloads
Reference documents for solid carbide milling tool selection and machining-data review.
Solid Carbide End Mill Catalog
Review combination cutters and related solid carbide milling tool series.
End Mill Speeds & Feeds Guide
Access reference starting parameters for machining trials and application 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.
