HRC65 4-Flute Solid Carbide Micro T-Slot Cutter for Hardened Steel
- ◆Micro-diameter design for narrow slots and small undercut features
- ◆4-flute geometry provides stable cutting and smooth profile surfaces
- ◆T-slot and dovetail profiles available according to the selected model
Selection and Customization: T-slot dimensions and dovetail angles are determined by model. Please provide the required profile, cutter diameter, neck diameter, machining depth, workpiece material and order quantity for quotation.
Calidad constante
Consistent geometry across repeat orders.
Pedidos flexibles
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
Herramientas estándar y personalizadas
Standard sizes and custom configurations.
HRC65 4-Flute Micro T-Slot Cutter Overview
This HRC65 4-flute solid carbide micro T-slot cutter is designed for precision T-slot milling, micro undercutting and recessed-profile machining in hardened steel and mold-steel components. Its compact cutting head and slim-neck configuration provide access to narrow recessed features where conventional T-slot cutters are too large, while the 4-flute solid carbide design supports controlled cutting engagement during hard-milling applications. Tool geometry, neck dimensions and coating can be matched to the required micro-slot profile, workpiece hardness and machining depth.
HRC65
4 Flutes
Micro T-Slot Cutter
Acero endurecido
Micro T-Slot Cutting Geometry
Compact T-Slot Cutting Head
Micro-scale cutting geometry is intended for narrow T-slots, recessed side features and precision undercuts where standard-size T-slot cutters cannot access the required profile.
Slim-Neck Access
A reduced neck section provides clearance behind the cutter head for micro undercutting and recessed T-slot machining in compact mold and precision-component features.
4-Flute Hard-Milling Design
The 4-flute solid carbide configuration provides repeated cutting engagement while maintaining the rigidity required for precision slotting and profiling in hardened materials.
Application-Specific Advantages
Micro-Feature Access
Compact cutter-head and neck geometry provide access to small recessed slots and undercut features.
4-Flute Engagement
Four cutting edges support stable engagement during controlled micro-slot and side-profile machining.
Hardened-Steel Focus
The HRC65 series is positioned for hard-milling applications in hardened and mold steels.
Custom Micro Profiles
Cutter head, slot width, neck dimensions, shank and overall length can be reviewed from drawings.
Recommended Machining Operations
RECOMMENDED
RECOMMENDED
RECOMMENDED
SUITABLE
Workpiece Material Compatibility
| MATERIAL GROUP | APPLICATION | LEVEL |
|---|---|---|
| H Hardened Steel | Micro T-slots, recessed profiles and hard-milling features | Primary |
| H Mold Steel | Precision slots and undercuts in mold and die components | Recommended |
| P Alloy Steel | Micro slotting and recessed-profile applications | Suitable |
| P Pre-Hardened Steel | Tool and coating selection according to actual hardness and engagement | Recommended |
Product Details
T-Slot Cutter Dimensions
The HRC65 solid carbide micro T-slot cutter is designed with a thin cutting head and reduced-neck structure for narrow T-slots, recessed side features and precision undercutting in hardened steel. Standard series dimensions cover multiple blade diameters, cutting thicknesses, head diameters and overall lengths, while non-standard profiles can be reviewed according to the required slot geometry and component drawing.
Technical Configuration
| PARAMETER | REFERENCE CONFIGURATION |
|---|---|
| Tipo de herramienta | Micro T-Slot Cutter / Precision Undercutting Cutter |
| Product Series | HRC65 |
| Material de la herramienta | Micro-Grain Solid Carbide |
| Blade Diameter | 3–20 mm according to series configuration |
| Cutting Thickness | 1 / 1.5 / 2 / 2.5 / 3 mm |
| Head Diameter | 6–25 mm depending on blade diameter |
| Longitud total | 50 / 60 / 65 / 75 mm depending on tool size |
| Recuento de flautas | 4 flutes for the 3–9 mm series; supplied size chart also includes 6-flute configurations from 10–20 mm |
| Cutting Profile | Thin-head T-slot / recessed side-cutting geometry |
| Neck Design | Reduced-neck configuration for recessed-slot and undercut access |
| Reference Coating | AlTiSiN / Nano Blue hard-milling configuration; alternative coating reviewed by application |
| Workpiece Hardness | Up to approximately HRC65 according to workpiece grade, cutter size and machining conditions |
| Primary Workpiece | Hardened Steel / Mold Steel / Pre-Hardened Alloy Steel |
| Primary Operations | Precision T-Slot Milling / Undercutting / Recessed Profiling / Hard Milling |
| Custom Options | Blade diameter, cutting thickness, head diameter, neck geometry, overall length, coating, laser marking and packaging |
Standard Size Matrix
Standard size combinations from the supplied HRC65 T-slot cutter series. All dimensions are in millimeters.
| BLADE DIAMETER | THICKNESS | HEAD DIAMETER | FULL LENGTH | FLUTES |
|---|---|---|---|---|
| 3 | 1 / 1.5 / 2 / 2.5 / 3 | 6 | 50 | 4 |
| 4 | 1 / 1.5 / 2 / 2.5 / 3 | 6 | 50 | 4 |
| 5 | 1 / 1.5 / 2 / 2.5 / 3 | 10 | 50 | 4 |
| 6 | 1 / 1.5 / 2 / 2.5 / 3 | 10 | 50 | 4 |
| 7 | 1 / 1.5 / 2 / 2.5 / 3 | 12 | 60 | 4 |
| 8 | 1 / 1.5 / 2 / 2.5 / 3 | 12 | 60 | 4 |
| 9 | 1 / 1.5 / 2 / 2.5 / 3 | 15 | 60 | 4 |
| 10 | 1 / 1.5 / 2 / 2.5 / 3 | 15 | 60 | 6 |
| 11 | 1 / 1.5 / 2 / 2.5 / 3 | 15 | 60 | 6 |
| 12 | 1 / 1.5 / 2 / 2.5 / 3 | 15 | 60 | 6 |
| 14 | 1 / 1.5 / 2 / 2.5 / 3 | 20 | 65 | 6 |
| 16 | 1 / 1.5 / 2 / 2.5 / 3 | 20 | 65 | 6 |
| 20 | 1 / 1.5 / 2 / 2.5 / 3 | 25 | 75 | 6 |
Size Selection & Custom Configuration
For precision T-slot machining, blade diameter, cutting thickness and head diameter should be selected together rather than independently. Non-standard dimensions can be reviewed when the required slot profile is outside the standard combinations above.
HRC65 T-Slot Milling Guidance
- Entry Clearance: Confirm that the available entry opening is sufficient for the selected cutter head before machining the recessed T-slot.
- Cutting Thickness: Select the 1–3 mm thickness according to the required finished slot width and dimensional tolerance.
- Tool Overhang: Use the shortest practical tool overhang and a low-runout precision holder, particularly with the thinner cutting-head configurations.
- Hard-Milling Engagement: Use controlled cutting engagement and adjust machining parameters according to actual workpiece hardness, cutter size and machine rigidity.
- Replacement Tools: For replacement or non-standard cutters, provide the existing cutter drawing or physical sample so the cutting thickness, head diameter and overall geometry can be confirmed.
HRC65 4-Flute T-Slot Cutter Customization
Cutter-head diameter, T-slot profile, slot width, neck diameter, neck length, shank size, overall length, cutting-edge preparation and coating can be configured for micro T-slot and recessed-profile machining in hardened steel. Standard configurations use a 4-flute solid carbide design with a slim-neck structure for micro undercut access, while non-standard dimensions and profile geometry can be reviewed according to the workpiece grade, hardness, slot depth, surrounding clearance and required dimensional accuracy.
| PARAMETER | MANUFACTURING CAPABILITIES |
|---|---|
| Cutter-Head Diameter | Micro and non-standard cutter-head diameters can be reviewed according to the required T-slot profile, entry clearance and component geometry. Exact dimensions should be confirmed from the drawing for micro-size applications. |
| T-Slot Width & Profile | Slot width and cutting profile can be matched to the required micro T-slot, recessed side feature or undercut geometry. Drawing-defined profiles are recommended for non-standard applications. |
| Neck Diameter | Slim-neck dimensions can be configured to provide clearance behind the cutter head while maintaining sufficient rigidity for hardened-steel machining. |
| Neck Length | Neck length can be reviewed according to recessed-feature depth, adjacent wall clearance and required machining reach. |
| Recuento de flautas | Standard 4-flute solid carbide configuration for controlled micro T-slot milling, undercutting and recessed-profile machining. |
| Shank Configuration | Straight cylindrical shank with shank diameter and clamping length selected according to cutter-head size, neck geometry, holder compatibility and required tool rigidity. |
| Longitud total | Standard or drawing-defined overall lengths can be reviewed according to machining depth, toolholder clearance and the shortest practical overhang required for micro-tool stability. |
| Cutting-Edge Geometry | Edge preparation, relief geometry and side-cutting profile can be reviewed according to workpiece hardness, cutter-head dimensions, engagement and required surface condition. |
| Selección del revestimiento | AlTiSiN / Nano Blue is available as a hardened-steel configuration. Alternative coating options can be reviewed according to workpiece grade, hardness, cutting temperature and machining conditions. |
| Workpiece Hardness | Configurations can be reviewed for hardened-steel applications up to approximately HRC65, depending on the actual material grade, cutter dimensions, machine rigidity and cutting engagement. |
| Aplicación de mecanizado | Geometry can be reviewed for micro T-slot milling, micro undercutting, recessed side profiling and selected hard-milling finishing operations. |
| Entry & Clearance | Cutter-head diameter, neck diameter and neck length can be reviewed together to ensure sufficient entry and side clearance within narrow recessed features. |
| Dimensional Tolerance | Drawing-defined requirements can be reviewed for cutter-head diameter, slot width, neck diameter, neck length, shank diameter, overall length and profile geometry. |
| Replacement Tool Matching | Existing micro T-slot cutters can be reviewed from a detailed tool drawing, component drawing or physical sample when an equivalent replacement specification is required. |
| OEM y marca propia | Laser marking, custom tool codes, private labels and packaging can be reviewed for distributors and OEM customers according to tool dimensions and order quantity. |
Servicios de fabricación personalizada y marca propia
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.
Inspección de bordes
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 HRC65 4-Flute Solid Carbide Micro T-Slot Cutter for hardened-steel, mold-steel and precision micro-slot applications.
What is this micro T-slot cutter designed for?
What does HRC65 mean for this product?
Why is a slim-neck design used?
Why does this cutter use a 4-flute design?
Which workpiece materials are recommended?
Which coating is available for hardened-steel machining?
Does the cutter require a pre-machined entry slot?
Ordering & Customization FAQs
Ordering information for distributors, mold-tool suppliers and OEM customers requiring standard or custom micro T-slot cutters.
Can the micro T-slot dimensions be customized?
Can you manufacture a replacement micro cutter from a drawing or sample?
Are OEM marking and private-label packaging available?
Can I order samples before a larger order?
¿Cuál es el plazo de entrega habitual?
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 micro T-slot cutters and related specialty solid carbide milling tool series.
End Mill Speeds & Feeds Guide
Use as a general starting reference before confirming micro-tool hard-milling 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.
























