HRC45-HRC65 4-Flute Solid Carbide Corner Radius End Mill for Steel and Mold Steel
This solid carbide corner radius end mill is designed for stable and high-precision metal machining. The 4-flute geometry improves cutting efficiency and surface finish, while the corner radius enhances edge strength. Suitable for materials from HRC45 to HRC65 in CNC milling applications.
⚙️ Ürün Konfigürasyonları
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Flüt sayısı: 4 Flüt
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Sertlik Aralığı: HRC45 / HRC55 / HRC65
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Helix Angle: Standard (optional variants available)
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Toplam Uzunluk: Standart / uzatılmış uzunluk
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Kaplama Seçenekleri: TiAlN / AlTiN / TiSiN / Kaplamasız
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Başvuru Materyalleri: Carbon steel, alloy steel, pre-hardened & hardened steel
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Özelleştirme: OEM / ODM mevcut
3D Contouring
Curved and free-form aluminum surfaces.
Cavity Finishing
Mold cavities, fillets and recessed profiles.
2-Kanallı Talaş Boşluğu
Efficient chip evacuation in aluminum.
DLC Low Friction
Reduced adhesion and built-up edge.
HRC45–HRC65 4-Flute Solid Carbide Corner Radius End Mill Overview
This 4-flute solid carbide corner radius end mill series provides selectable HRC45, HRC55 and HRC65 configurations for carbon steel, alloy steel, tool and mold steel, and confirmed hardened-steel applications. Its reinforced corner radius improves edge strength and reduces chipping risk while retaining a flat-bottom cutting profile. The four-flute geometry supports stable side milling, pocketing, 2D/3D contouring and semi-finishing, with carbide grade, coating and edge preparation selected according to the workpiece hardness and cutting conditions.
Key Configuration
Reinforced Corner Radius
The radiused corner reduces local edge stress and chipping risk while maintaining a usable flat-bottom profile.
Four-Flute Cutting Geometry
Four cutting edges support productive side milling, profiling and semi-finishing with stable engagement.
Application-Matched Grade
Carbide grade, coating and edge preparation are selected for the confirmed steel hardness and operation.
Key Product Advantages
Stronger Corner
Improved corner strength compared with a sharp-edge square end mill.
Productive Engagement
Four flutes provide more cutting contacts per revolution for stable steel milling.
Three Grade Levels
HRC45, HRC55 and HRC65 options cover different hardness and application demands.
Flexible Configuration
Diameter, radius, length, coating and geometry can be reviewed for custom supply.
Recommended Milling Operations
The corner-radius profile is particularly useful where a sharp corner is unnecessary and improved tool-edge reliability is preferred.
Workpiece Material Compatibility
| MATERIAL GROUP | EXAMPLES | APPLICATION LEVEL |
|---|---|---|
| P Karbonlu Çelik | General carbon and structural steels | Primary application |
| P Alloy & Tool Steel | Alloy steel, tool steel and mold steel | Confirm grade and hardness |
| H Hardened Steel | Confirmed tool, mold and heat-treated steels up to the selected series level | HRC55/HRC65 review required |
Product Details & Milling Demonstration


Tool Nomenclature & Dimensions
Reference dimensions and standard configurations for the HRC45–HRC65 4-flute solid carbide corner radius end mill series. All listed dimensions are in millimeters.
Technical Configuration
| PARAMETRE | SPECIFICATION |
|---|---|
| Alet Malzemesi | Micro-Grain Solid Carbide |
| Profil Sonu | Flat Bottom with Reinforced Corner Radius |
| Hardness Series | HRC45 / HRC55 / HRC65 |
| Kaplama | Selected according to carbide grade, workpiece hardness and application |
| Flüt Sayısı | 4 Flutes |
| Standard DC Range | Ø1–Ø12 mm in the listed size matrix |
| Primary Materials | Carbon Steel / Alloy Steel / Tool & Mold Steel / Confirmed Hardened Steel |
| Makine Uyumluluğu | CNC Machining Centers / Milling Machines |
| Custom Supply | Drawing-based diameter, radius, flute length, shank and overall-length configurations |
Standard Size Matrix
The configurations below are consolidated from the original product table. Model strings have been normalized to DC × R × DCON × OAL for clearer distributor and purchasing review. Select the carbide and coating series separately according to workpiece hardness.
| SPECIFICATION | DC | R | DCON | OAL | FLÜT |
|---|---|---|---|---|---|
| Ø1×R0.2×D4×50L | 1 | 0.2 | 4 | 50 | 4 |
| Ø1.5×R0.2×D4×50L | 1.5 | 0.2 | 4 | 50 | 4 |
| Ø2×R0.2 / R0.3 / R0.5×D4×50L | 2 | 0.2 / 0.3 / 0.5 | 4 | 50 | 4 |
| Ø2.5×R0.2 / R0.5×D4×50L | 2.5 | 0.2 / 0.5 | 4 | 50 | 4 |
| Ø3×R0.2 / R0.5×D3×50L | 3 | 0.2 / 0.5 | 3 | 50 | 4 |
| Ø3×R0.2 / R0.3 / R0.5 / R1×D4×50L | 3 | 0.2 / 0.3 / 0.5 / 1 | 4 | 50 | 4 |
| Ø4×R0.2 / R0.3 / R0.5 / R1×D4×50L | 4 | 0.2 / 0.3 / 0.5 / 1 | 4 | 50 | 4 |
| Ø5×R0.5 / R1×D6×50L | 5 | 0.5 / 1 | 6 | 50 | 4 |
| Ø6×R0.2 / R0.3 / R0.5 / R1×D6×50L | 6 | 0.2 / 0.3 / 0.5 / 1 | 6 | 50 | 4 |
| Ø6×R0.2 / R0.5 / R1×D8×60L | 6 | 0.2 / 0.5 / 1 | 8 | 60 | 4 |
| Ø8×R1.5 / R2×D8×60L | 8 | 1.5 / 2 | 8 | 60 | 4 |
| Ø10×R0.5 / R1 / R1.5 / R2 / R3×D10×75L | 10 | 0.5 / 1 / 1.5 / 2 / 3 | 10 | 75 | 4 |
| Ø12×R0.5 / R1 / R2 / R3×D12×75L | 12 | 0.5 / 1 / 2 / 3 | 12 | 75 | 4 |
Hardness-Series Selection
| SERİ | SELECTION POSITIONING |
|---|---|
| HRC45 | General carbon and alloy steel under stable machining conditions |
| HRC55 | Tool steel, mold steel and selected pre-hardened steel applications |
| HRC65 | Confirmed hardened-steel finishing and light semi-finishing after technical review |
Corner Radius End Mill Application Guidance
- Radius Selection: Select an R value equal to or smaller than the required part fillet.
- Side Milling: Use appropriate radial engagement to benefit from the four-flute geometry and control cutting temperature.
- Pocket Machining: Confirm center-cutting and entry capability before plunging or helical interpolation.
- Toolholding: Use a low-runout holder and minimize unnecessary overhang, especially for small DC and small R sizes.
- Chip Control: Use air blow or a suitable coolant strategy to prevent chip recutting in enclosed pockets.
HRC45–HRC65 4-Flute Corner Radius End Mill Customization
Cutting diameter, corner radius, flute length, overall length, shank configuration, cutting-edge geometry, carbide grade and coating can be configured for steel-milling applications. HRC45, HRC55 and HRC65 series options are selected according to the workpiece grade and hardness, while non-standard dimensions and application-specific geometries can be reviewed according to the required part fillet, milling operation, tool engagement, machine rigidity and dimensional accuracy.
| PARAMETRE | ÜRETİM KAPASİTELERİ |
|---|---|
| Hardness Series | HRC45, HRC55 and HRC65 configurations selected according to the actual workpiece grade, hardness, milling operation and required balance between cutting-edge strength and wear resistance |
| Kesim Çapı | Reference standard sizes cover selected cutting diameters from Ø1 to Ø12 mm, with intermediate and non-standard diameters available after drawing review |
| Corner Radius | Standard and drawing-defined R values can be produced according to the required component fillet, cutting-edge strength, machining allowance and surface transition |
| Flüt Sayısı | 4-flute configuration for side milling, pocket machining, contour milling, roughing, semi-finishing and selected finishing operations |
| Flüt Uzunluğu | Standard, short-flute and drawing-defined flute lengths can be configured according to the machining depth, axial engagement and tool-rigidity requirement |
| Reach & Overall Length | Standard and extended-reach overall lengths can be reviewed according to the required machining depth, holder clearance and allowable tool overhang |
| Şaft Yapısı | Precision cylindrical shanks with standard or drawing-defined diameter, clamping length and cutting-section transition |
| Corner-Radius Geometry | Reinforced transition between the end and peripheral cutting edges can be matched to the required part fillet while retaining a flat-bottom cutting profile |
| Cutting-Edge Preparation | Rake geometry, relief geometry, edge honing and corner preparation can be adjusted according to the selected hardness series, cutting load and surface-finish requirement |
| Carbide Grade | Micro-grain carbide grades can be matched to the HRC45, HRC55 or HRC65 series according to the required toughness, hardness resistance and machining stability |
| Kaplama Seçimi | AlTiN, TiAlN, TiSiN, AlTiSiN or another application-specific coating can be selected according to the workpiece hardness, cutting temperature, coolant method and required tool life |
| Freze Uygulaması | Geometry can be optimized for side milling, pocket machining, 2D and 3D contouring, roughing, semi-finishing and finishing; slotting requires additional chip-evacuation and engagement review |
| Boyutsal Tolerans | Drawing-defined requirements for cutting diameter, corner radius, flute length, shank diameter, overall length, cutting-edge runout and profile accuracy |
OEM ve Özel Etiket Hizmetleri
OEM manufacturing and private-label supply are available for industrial distributors, tooling brands and repeat-production customers. The selected HRC series, corner-radius specification, coating identification, laser marking, product labels and protective packaging can be configured according to the approved tool drawing and order requirements.
Lazer Kazıma
Custom logos, tool codes, cutting diameter, corner radius, HRC series, coating identification and batch numbers can be marked according to the available shank area.
Özel Etiketler ve Ambalajlar
Individual protective tubes, specification labels, hardness-series identification, colored packaging tubes and private-label packaging can be reviewed.
Coating & Series Identification
Coating appearance, HRC-series labeling and product codes can be coordinated to help distributors distinguish different application grades.
Ticari Şartlar
Minimum sipariş miktarı (MOQ), numune değerlendirmesi, özel boyut denemeleri, tekrar siparişler ve planlı tedarik programları, seçilen konfigürasyona göre teyit edilir.
Teknik İş Akışı
A structured review process is used to confirm standard, customized and private-label corner radius end mill requirements before production.
Sorgulama
Malzeme, sertlik, frezeleme işlemi, boyutlar, tolerans ve miktarı belirtiniz.
Mühendislik
Flüt geometrisini, sarmal açısını, kenar hazırlığını, kaplamayı, ap ve ae değerlerini gözden geçirin.
Ticari
Teklifi, minimum sipariş miktarını (MOQ), numune şartlarını, üretim takvimini ve teslimat koşullarını teyit edin.
Üretim
CNC taşlama, uç yüzey şekillendirme, kenar hazırlama, kaplama ve lazerle işaretleme.
Kalite Kontrolü
Çapı, oluk uzunluğunu, şaftı, eksantrikliği, kare uç geometrisini ve kesme kenarlarını kontrol edin.
Kalite, Denetim ve Teslimat
Katı karbür kare uçlu frezelerimiz, malzeme doğrulama, hassas taşlama, üretim süreci sırasında yapılan ölçümler ve son kontrol aşamalarıyla denetlenmektedir. Ana boyutlar, kare uç geometrisi, kesici kenar durumu, kaplama görünümü ve ürün tanımlaması, paketlemeden önce onaylanmış teknik şartnameye veya çizime göre incelenmektedir.

Üç Aşamalı Kalite Kontrolü
Üretim sürecinin çeşitli aşamalarına, boyutsal tutarlılığı sağlamak ve tekrar sipariş kontrolünü desteklemek amacıyla denetim noktaları yerleştirilmiştir.
Gelen Malzeme Kontrolü
Karbür alt tabaka kalitesi, ham parça boyutları ve tedarik edilen malzeme bilgileri, üretim gereksinimleriyle karşılaştırılarak kontrol edilir.
Üretim Sırasında Taşlama Kontrolü
CNC taşlama işlemi sırasında kesme çapı, oluk geometrisi, oluk uzunluğu, kare uç profili ve şaft boyutları izlenir.
Son Alet Kontrolü
Üretimi tamamlanmış takımlar, belirtilen boyutlar, eksantriklik, kesici kenar durumu, kaplama görünümü, işaretleme ve ambalaj tanımlaması açısından incelenir.
Temel Denetim Özellikleri
Denetim gereklilikleri, standart ürün şartnamesine veya onaylanmış özel çizime göre teyit edilir.
| DENETİM KONUSU | KONTROL ODAĞI | ONAY ESASLARI |
|---|---|---|
| Kesme Çapı (DC) | Çap ve boyut tutarlılığı | Standart teknik şartname veya onaylı çizim |
| Flüt Uzunluğu (APMX) | Etkili kesme uzunluğu | Onaylanmış ürün boyutu veya çizim gereksinimi |
| Şaft Çapı (DCON) | Sıkıştırma kesitinin boyutu ve yüzey durumu | Uygun şaft özellikleri |
| Toplam Uzunluk (OAL) | Toplam alet uzunluğu | Standart boyutlu matris veya onaylanmış çizim |
| Radyal Salgı | Kesme bölümü ile şaft arasındaki eşmerkezlilik | Kararlaştırılan denetim şartı |
| Kare Uçlu Geometri | Uç yüz profili, köşe durumu ve merkez kesim şekli | Seçilen araç yapılandırması |
| Flüt ve Heliks Profili | Flüt sayısı, sarmal şekli ve taşlama tutarlılığı | Onaylanmış üretim konfigürasyonu |
| Son Teknoloji ve Kaplama | Kenar durumu, gözle görülür kusurlar ve kaplama görünümü | Uygulamaya özgü üretim gereksinimi |
| İşaretleme ve Tanımlama | Uygun olduğu durumlarda alet kodu, boyutlar ve parti bilgileri | Onaylanmış sipariş ve paketleme özellikleri |
Ölçüm ve Parti İzlenebilirliği
Optik ölçüm sistemleri, takım kontrol ekipmanları ve uygun boyutsal ölçüm aletleri, kontrol edilecek özelliğe göre seçilir.
Optik Ölçüm
Belirtilen kesme özelliklerinin profil ve boyut incelemesi.
Çıkma Kontrolü
Kararlaştırılan ürün gereksinimlerine dayalı eşmerkezlilik incelemesi.
Kenar Denetimi
Uç yüzeyi, köşeler ve kesici kenarın durumuna ilişkin detaylı inceleme.
Parti Tanımlama
Tekrarlanan tedarik için gerekli olan yerlerde sipariş, ürün ve parti bilgileri birbiriyle ilişkilendirilmiştir.
Koruyucu Ambalajlama Süreci
Hazır uçlu frezeler, kesici kenarlar arasındaki teması azaltmak ve depolama ile nakliye sırasında ürünün net bir şekilde tanımlanmasını sağlamak amacıyla korunmaktadır.

Toplu Sipariş ve İhracat Ambalajı
Toplu sevkiyatlar, sipariş miktarına, sevkiyat ağırlığına ve kararlaştırılan nakliye şartlarına göre, takviyeli karton kutular, koruyucu ambalaj, paletli yükleme veya ihracat kasaları kullanılarak düzenlenebilir.

Teslimat Koordinasyonu
Üretimin tamamlanması, paketleme yöntemi ve sevkiyat düzenlemeleri, onaylanan siparişe göre teyit edilir. Kargo, hava, deniz veya müşteri tarafından belirlenen nakliye seçenekleri, sevkiyatın boyutuna ve varış noktasına göre değerlendirilebilir. Nihai teslim süresi, ürün özellikleri, miktar ve paketleme gereklilikleri onaylandıktan sonra teyit edilir.
Sık Sorulan Sorular ve İndirmeler
Review common product, application and ordering questions for the HRC45–HRC65 4-flute solid carbide corner radius end mill series, then access the current end mill catalog and starting cutting-data guide.
Ürün ve Uygulama SSS'leri
Selection guidance for different steel hardness levels and corner-radius milling applications.
What is the difference between the HRC45, HRC55 and HRC65 series?
The three series use application-oriented carbide, cutting-edge and coating configurations for different workpiece hardness levels. HRC45 is generally selected for carbon and alloy steel, HRC55 for tool steel, mold steel and selected pre-hardened steel, and HRC65 for confirmed hardened-steel finishing or light semi-finishing. Final selection should be based on the actual material and hardness.
Does the HRC rating guarantee machining at that exact hardness?
No. The HRC rating indicates the product-series positioning rather than a universal machining guarantee. Actual performance depends on the steel grade, operation, cutting diameter, corner radius, cutting data, holder runout, tool overhang, machine rigidity and coolant strategy.
What materials can this corner radius end mill machine?
The series is intended for carbon steel, alloy steel, tool steel, mold steel, pre-hardened steel and selected hardened steel. Please provide the exact workpiece grade and hardness so the appropriate HRC series, coating and cutting geometry can be confirmed.
What is the advantage of a corner radius end mill?
The corner radius reinforces the transition between the end and peripheral cutting edges. It helps reduce stress concentration and edge chipping compared with a sharp-corner square end mill while retaining a flat-bottom profile for pockets, steps and contour features.
How should I select the correct corner radius?
Select a cutter radius equal to or smaller than the required internal fillet of the component. A larger R value generally increases corner strength, but the cutter cannot produce an internal fillet smaller than its own radius. A component drawing is recommended when the fillet dimension is critical.
Which machining operations are suitable for the 4-flute design?
The 4-flute geometry is suitable for side milling, pocket machining, 2D and 3D contouring, roughing, semi-finishing and selected finishing operations. Four cutting edges provide stable engagement and productive feed capability when radial engagement and chip evacuation are properly controlled.
Can this 4-flute end mill be used for full-width slotting?
Selected configurations can be used for slotting, but a 4-flute cutter has less chip space than a 2-flute cutter. Use reduced engagement, suitable cutting parameters and reliable chip removal for full-width slots. Center-cutting and plunge capability should be confirmed for the selected configuration.
Sipariş ve Özelleştirme ile İlgili Sık Sorulan Sorular
Ordering information for distributors, tooling brands and customers requiring standard or drawing-based configurations.
Hangi standart boyutlar mevcuttur?
The reference matrix covers selected cutting diameters from Ø1 to Ø12 mm with multiple corner radii, shank diameters and overall lengths. Availability should be confirmed using the complete specification, including DC, R, flute length, DCON, OAL and required HRC series.
Can non-standard sizes and geometry be manufactured?
Yes. Cutting diameter, corner radius, flute length, reach, shank diameter, overall length, cutting-edge preparation, flute geometry and coating can be reviewed according to the tool drawing, component drawing and machining application.
Can I order samples before placing a wholesale order?
Yes. Sample orders can be reviewed according to the required HRC series, cutting diameter, corner radius, coating and quantity. Please contact us to confirm sample availability, cost and shipping arrangements.
What is the lead time?
In-stock standard sizes are generally ready for shipment within 1–3 days. Lead time for customized or made-to-order tools is confirmed after reviewing the required dimensions, HRC series, coating, quantity and packaging requirements.
OEM etiketleme ve özel markalı ambalajlama seçenekleri mevcut mu?
Yes. Laser marking, customized tool codes, private labels, protective tubes and branded packaging are available for distributors, resellers and OEM orders. Final options depend on the tool size, marking area and order quantity.
Doğru bir fiyat teklifi için hangi bilgiler gereklidir?
Please provide the workpiece material and hardness, cutting diameter, corner radius, flute length, shank diameter, overall length, machining operation, axial depth ap, radial engagement ae, coating requirement, dimensional tolerance and order quantity. A tool or component drawing is recommended for custom projects.
Teknik Dosyalar
Access current product-range information and starting cutting references for solid carbide end mill selection.
Solid Carbide End Mills Catalog
Product families, hardness series, flute options and reference sizes.
Uçlu Freze Hızları ve İlerleme Hızları Kılavuzu
Starting cutting speeds, chip loads, engagement guidance and adjustment notes.
Cutting data are starting references only. Adjust the values according to the selected HRC series, cutting diameter, corner radius, workpiece hardness, engagement, tool overhang, holder condition and machine rigidity.
Ölçüler, fiyatlar veya özel seçenekler mi arıyorsunuz?
Gerekli takım türünü, boyutlarını, miktarlarını, iş parçası malzemesini ve varsa OEM veya özel gereksinimleri bize iletin. Uygun teknik özellikleri, stok durumunu, teslim süresini ve fiyat teklifi ayrıntılarını size teyit edeceğiz.
Çizimler, boyut listeleri ve referans fotoğraflar memnuniyetle kabul edilir.

















