4-Flute Solid Carbide Corner-Rounding End Mill for Edge Finishing
- ◆Precision-ground R profile provides consistent and repeatable radius geometry
- ◆4-flute balanced design improves rigidity and machining stability
- ◆Solid carbide construction provides strong edge support and wear resistance
Custom diameter, radius, cutting length, shank size, coating, laser marking and packaging are available for OEM and ODM orders.
Consistent Quality
Consistent geometry across repeat orders.
คำสั่งซื้อที่ยืดหยุ่น
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
แบบมาตรฐานและแบบตามสั่ง
Standard sizes and custom configurations.
Carbide Corner-Rounding End Mill Overview
This 4-flute solid carbide corner-rounding end mill is designed for machining defined radii on component edges in steel, alloy steel, mold steel and pre-hardened steel. The precision-ground concave cutting profile forms a controlled corner radius along external edges, while the 4-flute geometry provides repeated cutting engagement for edge radiusing, profile finishing and mold-component machining. Solid carbide construction provides the rigidity required for CNC milling, with tool geometry and coating selected according to the workpiece grade, hardness and required edge finish.
Corner-Rounding End Mill
4 Flutes
R1–R6 mm
Steel Edge Radiusing
Corner-Rounding Cutting Geometry
Precision-Ground Radius Profile
The concave cutting profile is ground to a defined radius for producing consistent rounded edges and smooth transitions on component corners.
4-Flute Cutting Structure
Four cutting edges provide repeated engagement during edge radiusing and profile-finishing operations under stable CNC machining conditions.
Steel-Oriented Configuration
Cutting-edge preparation and coating can be selected according to steel grade, workpiece hardness, engagement and required edge quality.
Application-Specific Advantages
Defined Edge Radius
Standard R1–R6 profiles cover common corner-rounding requirements.
Four Cutting Edges
The 4-flute configuration supports stable edge profiling and finishing.
Solid Carbide Rigidity
Solid carbide construction provides a rigid platform for precision CNC edge machining.
Custom Radius Supply
Radius, neck geometry, shank dimensions, length and coating can be reviewed according to drawings.
Recommended Machining Operations
RECOMMENDED
RECOMMENDED
RECOMMENDED
SUITABLE
Workpiece Material Compatibility
| MATERIAL GROUP | APPLICATION | LEVEL |
|---|---|---|
| P Carbon Steel | Edge radiusing and profile finishing | Primary |
| P Alloy Steel | Coating and cutting conditions selected according to grade | Primary |
| P Mold & Tool Steel | Mold edges and precision component finishing | Recommended |
| Pre-Hardened Steel | Application review recommended as hardness approaches HRC55 | Application Review |
Product Details
Product views showing the concave corner-rounding profile, 4-flute cutting geometry and solid carbide tool construction.
Tool Nomenclature & Dimensions
Reference dimensions for the 4-flute solid carbide corner-rounding end mill series. Select the corner radius according to the finished edge geometry, then confirm the shank diameter and overall length according to the component clearance and toolholder requirements. All listed dimensions are in millimeters.
Technical Configuration
| PARAMETER | REFERENCE CONFIGURATION |
|---|---|
| Tool Type | Corner-Rounding End Mill / Edge-Rounding Cutter |
| Tool Material | Solid Carbide |
| Flute Count | 4 Flutes |
| Standard Radius Range | R1 / R1.5 / R2 / R2.5 / R3 / R4 / R5 / R6 mm |
| Shank Diameter | Ø4 / Ø6 / Ø8 / Ø10 / Ø12 / Ø14 mm according to radius size |
| Overall Length | 50 / 60 / 75 mm standard configurations |
| Cutting Profile | Concave form-ground profile for external edge radiusing and corner rounding |
| Primary Materials | Carbon Steel / Alloy Steel / Mold Steel / Tool Steel / Pre-Hardened Steel |
| Application Hardness | Steel applications up to approximately HRC55 according to tool configuration and cutting conditions |
| Coating Options | Steel-oriented coating selected according to workpiece grade, hardness and machining conditions |
| Primary Operations | Edge Radiusing / Corner Rounding / Edge Profiling / Edge Finishing |
| Customization | Radius, profile geometry, neck dimensions, shank diameter, overall length, coating and marking can be reviewed according to drawings. |
Standard 4-Flute Size Matrix
Reference 4-flute configurations for the solid carbide corner-rounding end mill series.
| SPECIFICATION | CORNER 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 |
Corner-Rounding Application Guidance
- Radius Selection: Match the cutter radius to the required finished edge radius on the component drawing.
- Tool Position: Set the axial position carefully because the finished radius depends on the cutter profile and its position relative to the component edge.
- Clearance: Confirm clearance between the cutter body, pilot section and adjacent component features before machining.
- Toolholding: Use a low-runout precision holder and the shortest practical tool overhang for consistent edge geometry.
- Steel Hardness: As workpiece hardness approaches HRC55, use application-specific coating and more conservative cutting conditions.
Corner-Rounding End Mill Customization
Corner radius, cutting profile, shank diameter, overall length, cutting-edge preparation and coating can be configured for edge radiusing, corner rounding, edge profiling and finishing in steel components. Standard 4-flute configurations cover R1–R6 mm corner radii with Ø4–Ø14 mm shank diameters and 50–75 mm overall lengths. Non-standard radius profiles and dimensions can be reviewed according to the component drawing, steel grade, hardness, edge geometry, feature clearance and required dimensional accuracy.
| PARAMETER | MANUFACTURING CAPABILITIES |
|---|---|
| Corner Radius | Standard 4-flute radius configurations include R1, R1.5, R2, R2.5, R3, R4, R5 and R6 mm. Non-standard radii can be reviewed according to the required finished edge radius and component drawing. |
| Corner-Rounding Profile | The concave cutting profile can be matched to the required external edge radius and transition geometry. Complete edge-profile dimensions should be confirmed from the component drawing for non-standard applications. |
| 4-Flute Configuration | The standard configuration uses four cutting edges for repeated engagement during corner rounding, edge radiusing and profile-finishing operations. |
| Profile Diameter | Cutter and profile dimensions can be reviewed according to the required corner radius, workpiece edge geometry, surrounding features and available machining clearance. |
| Clearance Geometry | Relief and clearance dimensions can be reviewed where adjacent shoulders, walls or component features require additional tool access around the corner-rounding profile. |
| Shank Diameter | Standard 4-flute configurations use Ø4, Ø6, Ø8, Ø10, Ø12 and Ø14 mm shank diameters according to radius size. Non-standard shank dimensions can be reviewed for holder compatibility. |
| Overall Length | Reference overall lengths are 50, 60 and 75 mm for the standard 4-flute series. Custom overall length can be reviewed according to machining reach, holder clearance and required tool rigidity. |
| Cutting-Edge Preparation | Rake geometry, relief, edge preparation and profile grinding can be reviewed according to steel grade, workpiece hardness, cutting engagement and required edge-finish quality. |
| Coating Selection | Nano TiAlN, AlCrN or other steel-oriented coating configurations can be reviewed according to workpiece grade, hardness, cutting temperature and machining conditions. |
| Workpiece Material | The product is intended mainly for carbon steel, alloy steel, mold steel, tool steel and pre-hardened steel. Applications approaching HRC55 should be reviewed according to the actual material grade and cutting conditions. |
| Machining Application | Geometry can be reviewed for edge radiusing, corner rounding, edge profiling and profile finishing on CNC machining centers and milling machines. |
| Profile & Dimensional Tolerance | Drawing-defined requirements can be reviewed for corner radius, profile geometry, shank diameter, overall length, tool runout and dimensional relationship between the cutter profile and workpiece edge. |
| Replacement Tool Matching | Existing corner-rounding cutters can be reviewed from a detailed tool drawing or physical sample when an equivalent or replacement specification is required. |
บริการ OEM และแบรนด์ส่วนตัว
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 Corner-Rounding End Mill for edge radiusing, corner rounding and profile finishing in steel machining.
What is this corner-rounding end mill designed for?
What standard corner radius sizes are available?
How should I select the correct corner radius?
What is the advantage of the 4-flute configuration?
Which steel materials can this cutter machine?
Which coatings are available for steel applications?
How is the finished edge radius controlled?
Ordering & Customization FAQs
Ordering information for distributors, tooling suppliers and OEM customers requiring standard or customized corner-rounding end mills.
Can non-standard corner radii be customized?
Can you manufacture a replacement cutter from a drawing or sample?
Can the clearance geometry be customized for restricted edges?
Are OEM marking and private-label packaging available?
ระยะเวลาการผลิตโดยทั่วไปคือเท่าไร?
What information should I provide for quotation?
Technical Downloads
Reference documents for solid carbide end mill selection and machining-data review.
Solid Carbide End Mill Catalog
Review corner-rounding 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.
