HRC70, End Mill Persegi Berbahan Karbida Padat 4-Flute untuk Baja yang Diuapkan
Engineered for hardened steel, die steel, and heat-treated alloys up to 70 HRC
- TiSiN nano coating for high heat resistance and coating stability
- Ultra-fine 0.2μm carbide substrate for improved wear resistance
- Reinforced core for rigid finishing
- Designed for hardened steel up to 70 HRC
Kualitas yang Konsisten
Geometri yang konsisten pada setiap pesanan berulang.
Pesanan Fleksibel
Tersedia dalam jumlah kecil dan berbagai ukuran.
Dukungan OEM
Penandaan khusus, label, dan kemasan.
Standar & Khusus
Ukuran standar dan konfigurasi khusus.
HRC70 4-Flute Solid Carbide Square End Mill Overview
This HRC70-series 4-flute solid carbide square end mill is developed for finishing hardened steel and other confirmed high-hardness workpieces. Its TiSiN nano coating, ultra-fine 0.2 μm carbide matrix, reinforced core and strengthened cutting-edge geometry support thermal stability, edge strength and dimensional consistency under controlled hard-milling conditions.
Product Machining Video
Advanced TiSiN Nano Coating

The TiSiN nano coating supports surface hardness and thermal resistance, helping the cutting edge remain stable at elevated cutting temperatures. It is intended for controlled dry or air-assisted finishing of hardened steels and high-hardness alloys.
Ultra-Fine Carbide & Reinforced Core
Optimized Cutting-Edge Geometry

Strengthened Square-End Profile
The edge profile is configured to resist premature chipping under high cutting resistance while supporting flat-bottom features and defined shoulders.
Four-Flute Stability
Four cutting edges and a reinforced core support light side milling and finishing where rigidity and surface consistency are priorities.
Hardened-Steel Finishing Applications
Hardened Die & Mold
Finishing SKD11, D2, DC53, H13 and comparable heat-treated die steels.
Precision Gear Features
Selected induction-hardened gear, spline and wear-resistant component features.
Hardened Structural Parts
Finishing operations requiring controlled surface quality and dimensional consistency.
Spesifikasi Teknis
Reference specifications for the HRC70 4-flute solid carbide square end mill series. Final size, coating, tolerance and suitability are confirmed by selected configuration and application conditions.
Tool Nomenclature & Dimensions

D: Diameter Pemotongan L1: Panjang Seruling D1: Diameter Shank L: Panjang Keseluruhan
Standard Size Matrix
| No. | Diameter D | Flute Length L1 | Shank D1 | Panjang Total L |
|---|---|---|---|---|
| 1 | 1.0 | 4 | 3 | 50 |
| 2 | 1.5 | 4 | 4 | 50 |
| 3 | 2.0 | 4 | 5 | 50 |
| 4 | 2.5 | 4 | 6 | 50 |
| 5 | 3.0 | 3 | 8 | 50 |
| 6 | 3.0 | 4 | 8 | 50 |
| 7 | 3.5 | 4 | 10 | 50 |
| 8 | 4.0 | 4 | 10 | 50 |
| 9 | 5.0 | 5 | 13 | 50 |
| 10 | 5.0 | 6 | 13 | 50 |
| 11 | 6.0 | 6 | 15 | 50 |
| 12 | 7.0 | 8 | 20 | 60 |
| 13 | 8.0 | 8 | 20 | 60 |
| 14 | 9.0 | 10 | 25 | 75 |
| 15 | 10.0 | 10 | 30 | 75 |
| 16 | 11.0 | 12 | 30 | 75 |
| 17 | 12.0 | 12 | 30 | 75 |
| 18 | 13.0 | 14 | 45 | 100 |
| 19 | 14.0 | 14 | 45 | 100 |
| 20 | 15.0 | 16 | 45 | 100 |
| 21 | 16.0 | 16 | 45 | 100 |
| 22 | 18.0 | 18 | 45 | 100 |
| 23 | 20.0 | 20 | 45 | 100 |
Recommended Starting Cutting Parameters
Reference finishing data from the original product information. Adjust for actual hardness, engagement, rigidity, overhang and surface requirement.
| Diameter D | Vc | Fz | Spindle n | Feed Vf |
|---|---|---|---|---|
| 4.0 mm | 50 m/min | 0.010 mm/tooth | 4,000 RPM | 160 mm/min |
| 6.0 mm | 50 m/min | 0.012 mm/tooth | 2,650 RPM | 125 mm/min |
| 8.0 mm | 50 m/min | 0.015 mm/tooth | 2,000 RPM | 120 mm/min |
| 10.0 mm | 55 m/min | 0.018 mm/tooth | 1,750 RPM | 125 mm/min |
| 12.0 mm | 55 m/min | 0.018 mm/tooth | 1,460 RPM | 105 mm/min |
Hard-Milling Setup Guidance
High-Rigidity Setup
Use a rigid machine, spindle and precision shrink-fit or hydraulic holder.
Short Tool Overhang
Keep extension as short as possible to reduce deflection and vibration.
Light Finishing Engagement
Use conservative radial and axial engagement to reduce edge-chipping risk.
HRC70 4-Flute Square End Mill Customization
Cutting diameter, flute length, shank dimensions, overall length, four-flute geometry, reinforced core design, cutting-edge preparation and TiSiN coating can be reviewed according to the hardened-steel grade, actual workpiece hardness, finishing operation, tool engagement, machine rigidity and required dimensional accuracy. Non-standard dimensions and selected geometry adjustments are confirmed through technical review.
| PARAMETER | MANUFACTURING CAPABILITIES |
|---|---|
| Diameter Pemotongan | Reference Ø1–Ø20 mm range, with selected intermediate and non-standard diameters reviewed according to the approved tool drawing |
| Flute Count | Four-flute configuration with a reinforced core for controlled side milling, shoulder finishing and selected hardened-steel machining operations |
| Carbide Substrate | Ultra-fine 0.2 μm carbide matrix selected to support cutting-edge strength, coating stability and wear resistance in high-hardness finishing applications |
| Flute & Overall Length | Reference flute lengths and overall lengths from 50 to 100 mm, with selected drawing-defined length configurations reviewed according to tool rigidity and machining reach |
| Konfigurasi Shank | Precision cylindrical shank with standard or drawing-defined shank diameter and clamping length for high-rigidity holders |
| Core & Flute Geometry | Reinforced core, four-flute form and application-specific helix geometry reviewed according to the workpiece hardness, cutting engagement and required finishing stability |
| Square-End Geometry | Precision flat-bottom square-end profile for finishing slots, pocket floors and 90° shoulders, with center-cutting capability confirmed by selected configuration |
| Edge Preparation | Strengthened cutting-edge preparation, end-face grinding, gash geometry and corner condition reviewed according to the actual workpiece hardness and cutting load |
| Coating Selection | TiSiN nano coating configured for thermal stability, surface hardness and wear resistance in controlled hardened-steel finishing conditions |
| Hard-Milling Application | Geometry can be reviewed for finishing hardened die steel, heat-treated alloy steel, tool steel and selected induction-hardened components |
| Coolant Strategy | Dry machining or stable air blast is preferred for the reference hard-milling application, subject to the workpiece, machine and cutting conditions |
| Dimensional Tolerance | Standard production tolerances or drawing-defined requirements for cutting diameter, flute length, shank diameter, overall length, runout and square-end geometry |
Layanan OEM & Merek Pribadi
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
Answers to common questions about selecting and applying the HRC70 4-Flute Solid Carbide Square End Mill for Hardened Steel.
What materials is this square end mill designed to machine?
Why use the 4-flute configuration for this application?
What milling operations are suitable for this square-end design?
Does HRC70 guarantee machining performance at 70 HRC?
Which coating or surface treatment should be selected?
What machining conditions should be reviewed before use?
Ordering & Customization FAQs
Information for distributors, tooling brands and customers requesting standard or application-specific 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 square-end, ball-nose, 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 workpiece grade, hardness, required dimensions, machining operation and quantity for configuration and quotation review.
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