HRC55 4-Flute TiSiN-Coated Solid Carbide Roughing End Mill
HRC55 4-flute TiSiN-coated solid carbide roughing end mill designed for efficient material removal in CNC milling. The serrated cutting edge reduces cutting force, improves chip evacuation, and provides stable performance for rough machining applications.
⚙️ Product Configurations
*Tool Type: Roughing end mill
*Flute Count: 4 Flute
*Hardness Capability: Up to HRC55
*Coating: TiSiN coated for high temperature resistance and improved wear performance
*Cutting Edge Design: Serrated edge geometry for efficient chip breaking and fast material removal
*Workpiece Materials: Carbon steel, alloy steel, mold steel and general steel
*Machining Type: Roughing, heavy cutting and high-efficiency material removal
*Helix Angle: 30° / 35° / 45° (optional)
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.
HRC55 TiSiN-Coated Roughing End Mill Overview
This HRC55 4-flute solid carbide roughing end mill combines serrated wave-edge geometry with a TiSiN coating for efficient stock removal in carbon steel, alloy steel, tool steel, mold steel and selected pre-hardened steel. The roughing profile divides the cutting load and produces shorter chips during high-engagement machining, while the four-flute construction provides a rigid tool core and stable cutting contact. Standard Ø1–Ø20 mm reference sizes, long-flute options and drawing-defined custom configurations are available for industrial distributors, tooling brands and repeat-production customers.
Up to HRC55
4-Flute Roughing
TiSiN
Ø1–Ø20 mm
HRC55 Steel-Roughing Features
Serrated Wave Edge
The roughing-tooth profile divides the cutting load and produces shorter chips during high-engagement stock removal.
Rigid 4-Flute Core
Four flutes provide multiple cutting contacts and a rigid core for rough slotting, side milling, pocketing and profiling.
TiSiN-Coated Cutting Edge
The TiSiN coating supports wear resistance and cutting-edge stability during elevated-temperature steel roughing.
Fine-Grain Solid Carbide
The fine-grain carbide substrate provides an application-matched balance of wear resistance, core strength and resistance to chipping.
Applications & Materials
Recommended for rough slotting, side milling, pocket roughing, profiling and high-engagement material removal on CNC machining centers and milling machines. Cutting parameters should be adjusted according to the tool diameter, flute length, workpiece hardness, axial depth, radial engagement, tool overhang and machine rigidity.
P Carbon Steel
P Alloy Steel
P Tool & Mold Steel
H Pre-Hardened Steel
Product Details
TiSiN-Coated Roughing End Mill Specifications
Technical configuration and standard reference sizes for the HRC55 4-flute TiSiN-coated solid carbide roughing end mill. Dimensions are shown in millimeters. Final size availability and cutting geometry should be confirmed according to the workpiece grade, hardness, machining engagement and required tool reach.
| PARAMETER | STANDARD CONFIGURATION |
|---|---|
| Product Type | Solid carbide roughing end mill |
| Cutting Profile | Serrated wave-edge roughing geometry |
| Substrate | Fine-grain solid carbide |
| Flute Count | 4 flutes |
| Coating | TiSiN coating |
| Target Hardness | Steel machining up to approximately HRC55 under suitable conditions |
| Cutting Diameter | Ø1–Ø20 mm reference range |
| Shank Diameter | Ø4–Ø20 mm reference range |
| Overall Length | 50, 60, 75 and 100 mm reference configurations |
| Helix Angle | 30° or 35° reference geometry |
| Main Applications | Rough slotting, side milling, pocket roughing, profiling and high-engagement stock removal |
| Machine Compatibility | CNC machining centers and milling machines |
Standard Reference Sizes
D = cutting diameter, L1 = flute length, d = shank diameter and L = overall length. The listed sizes are reference configurations; stock availability should be confirmed before ordering.
| SPECIFICATION | D | L1 | d | L | FLUTES |
|---|---|---|---|---|---|
| D1–D4 × L1 × d4 × 50L | 1–4 | 3 / 6 / 9 / 12 | 4 | 50 | 4 |
| D4 × 16 × d4 × 75L | 4 | 16 | 4 | 75 | 4 |
| D4 × 20 × d4 × 100L | 4 | 20 | 4 | 100 | 4 |
| D6 × 15 × d6 × 50L | 6 | 15 | 6 | 50 | 4 |
| D6 × 24 × d6 × 75L | 6 | 24 | 6 | 75 | 4 |
| D6 × 30 × d6 × 100L | 6 | 30 | 6 | 100 | 4 |
| D8 × 20 × d8 × 60L | 8 | 20 | 8 | 60 | 4 |
| D8 × 25 × d8 × 75L | 8 | 25 | 8 | 75 | 4 |
| D8 × 35 × d8 × 100L | 8 | 35 | 8 | 100 | 4 |
| D10 × 25 × d10 × 75L | 10 | 25 | 10 | 75 | 4 |
| D10 × 40 × d10 × 100L | 10 | 40 | 10 | 100 | 4 |
| D12 × 35 × d12 × 75L | 12 | 35 | 12 | 75 | 4 |
| D12 × 45 × d12 × 100L | 12 | 45 | 12 | 100 | 4 |
| D14 × 45 × d14 × 100L | 14 | 45 | 14 | 100 | 4 |
| D16 × 45 × d16 × 100L | 16 | 45 | 16 | 100 | 4 |
| D18 × 45 × d18 × 100L | 18 | 45 | 18 | 100 | 4 |
| D20 × 45 × d20 × 100L | 20 | 45 | 20 | 100 | 4 |
HRC55 Carbide & TiSiN Coating Reference
The carbide substrate and TiSiN coating are selected as a combined cutting system for steel roughing. Final properties may vary according to the carbide and coating supplier.
| ITEM | REFERENCE PROPERTY | VALUE | FUNCTION |
|---|---|---|---|
| HRC55 Carbide | Grain Size | 0.6 μm | Balance of edge stability and core toughness |
| HRC55 Carbide | Cobalt Content | 10% | Supports carbide toughness during roughing loads |
| TiSiN Coating | Reference Hardness | 3600 HV | Supports cutting-edge wear resistance |
| TiSiN Coating | Reference Thickness | Approximately 3 μm | Provides a coated cutting surface without excessive edge buildup |
| TiSiN Coating | Reference Oxidation Temperature | Approximately 1000°C | Supports elevated-temperature steel machining |
The listed carbide and coating properties are supplier reference values and may vary according to coating structure, deposition process and production batch.
TiSiN-Coated Roughing End Mill Customization
Cutting diameter, serrated roughing-tooth profile, flute length, shank diameter, overall length, helix angle and cutting-edge preparation can be configured for steel-roughing applications. The standard design combines four flutes with a TiSiN-coated wave edge for controlled chip formation and stable stock removal. Standard, long-flute, extended-length and drawing-defined non-standard configurations can be reviewed according to the workpiece grade, hardness, machining engagement, tool overhang and machine rigidity.
| PARAMETER | MANUFACTURING CAPABILITIES |
|---|---|
| Cutting Diameter | Reference cutting diameters from Ø1–Ø20 mm, with intermediate and drawing-defined non-standard diameters available after technical review |
| Flute Count | Standard 4-flute construction with a rigid tool core and multiple cutting contacts for steel-roughing operations |
| Roughing-Tooth Profile | Serrated wave-edge pitch and tooth profile can be adjusted according to the tool diameter, required chip size, cutting load and remaining finishing allowance |
| Flute Length | Standard, long-flute and drawing-defined cutting lengths can be reviewed according to the axial depth, workpiece geometry and machining reach |
| Overall Length | Reference overall lengths of 50, 60, 75 and 100 mm, with selected extended-length configurations available for deeper or less accessible features |
| Shank Configuration | Precision cylindrical shanks from Ø4–Ø20 mm, with custom shank diameter, reduced-neck geometry and clamping length reviewed according to the holder and tool overhang |
| Helix Angle | 30° or 35° reference helix options, with application-specific geometry reviewed according to the steel grade, chip formation and cutting engagement |
| End Geometry | Square-end roughing geometry for slots, pockets and shoulder roughing, with the end-face design and center-cutting capability confirmed by the selected configuration |
| Cutting-Edge Preparation | Rake angle, relief geometry, edge honing, end-face grinding and corner condition can be matched to the workpiece hardness and roughing load |
| Carbide Grade | Fine-grain carbide grade selected to balance cutting-edge wear resistance, tool-core strength and resistance to chipping during steel roughing |
| TiSiN Coating | TiSiN coating applied to support cutting-edge wear resistance and thermal stability during elevated-temperature machining of steel up to approximately HRC55 |
| Workpiece Materials | Configurations can be reviewed for carbon steel, alloy steel, tool steel, mold steel and selected pre-hardened steel |
| Workpiece Hardness | HRC55-series positioning for steel machining up to approximately HRC55 under suitable cutting conditions |
| Roughing Applications | Geometry can be reviewed for rough slotting, side milling, pocket roughing, profiling and other high-engagement stock-removal operations |
| Dimensional Tolerance | Drawing-defined control of cutting diameter, flute length, shank diameter, overall length, runout and roughing-edge geometry, with critical tolerances confirmed before production |
| OEM & Private Label | Customer logos, tool codes, cutting dimensions, TiSiN identification and batch numbers can be laser marked; custom labels, protective tubes and private-label packaging are also available |
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.
FAQ & Downloads
Review common product, application and ordering questions for the HRC55 4-flute TiSiN-coated solid carbide roughing end mill, then access the current end mill catalog and starting cutting-data guide.
Product & Application FAQs
Selection and application guidance for high-engagement steel roughing.
What materials is this HRC55 roughing end mill designed to machine?
It is primarily configured for carbon steel, alloy steel, tool steel, mold steel and selected pre-hardened steel up to approximately HRC55. Final suitability depends on the workpiece grade, hardness, cutting engagement, holder condition, machine rigidity and coolant strategy.
Does HRC55 mean the tool can machine every steel at exactly 55 HRC?
HRC55 describes the product-series positioning and approximate upper target range under suitable machining conditions. Actual capability depends on the steel composition, operation, tool diameter, cutting parameters, tool overhang, holder condition and machine rigidity. Applications near the upper hardness range should be reviewed before machining.
What is the purpose of the serrated roughing edge?
The serrated wave-edge geometry divides the removed material into shorter chips and interrupts the cutting load. This supports chip control and helps reduce continuous cutting resistance during heavy roughing compared with a conventional smooth-edge finishing end mill.
What are the advantages of the 4-flute construction?
The four-flute construction provides a rigid tool core and multiple cutting contacts for stable side milling, pocket roughing and profiling. Chip evacuation must still be controlled carefully during full-width slotting or deep axial engagement because the additional flutes reduce the available chip space.
What does the TiSiN coating provide?
TiSiN is a wear- and heat-resistant coating selected to support cutting-edge stability during elevated-temperature steel machining. Its performance depends on the carbide substrate, edge preparation, coating quality, workpiece material and cutting conditions.
Which machining operations are suitable for this roughing end mill?
It is suitable for rough slotting, side milling, pocket roughing, profiling and other high-engagement stock-removal operations. Axial depth, radial engagement and feed should be adjusted according to the cutting diameter, flute length, workpiece hardness and machine rigidity.
Can this roughing end mill produce the final finished surface?
The serrated cutting profile normally leaves a characteristic wave pattern on the machined surface. When a smooth final surface or close finished dimension is required, leave suitable finishing stock and complete the operation with a smooth-edge finishing end mill.
Can this 4-flute tool perform full-width slotting?
Full-width slotting may be possible when the cutting parameters, axial depth and chip evacuation are properly controlled. Reduce engagement when necessary and maintain effective coolant or air delivery to prevent chip recutting and excessive heat accumulation.
Ordering & Customization FAQs
Information for distributors, tooling brands and customers requesting standard or drawing-based configurations.
What standard sizes are available?
The reference series covers selected cutting diameters from Ø1–Ø20 mm, shank diameters from Ø4–Ø20 mm and overall lengths of 50, 60, 75 and 100 mm. Standard, long-flute and selected extended-length configurations are available. Final stock availability should be confirmed before ordering.
Can non-standard dimensions or roughing geometry be manufactured?
Yes. Cutting diameter, flute length, shank diameter, overall length, reduced-neck geometry, roughing-tooth profile, helix angle and cutting-edge preparation can be reviewed according to the drawing and machining application.
Can I order samples before placing a bulk order?
Yes. Samples can be reviewed according to the required diameter, flute length, TiSiN coating and quantity. For a non-standard tool, the drawing, tolerance requirements, sample quantity and delivery cost must be confirmed before production.
What is the lead time?
Available standard configurations can normally be shipped within 1–3 working days after order confirmation. Lead time for custom dimensions, special roughing geometry or non-standard production requirements is confirmed separately according to the drawing, quantity and current production schedule.
Are OEM marking and private-label packaging available?
Yes. Customer logos, tool codes, cutting dimensions, TiSiN coating identification and batch numbers can be laser marked according to the available shank area. Custom labels, protective tubes and private-label packaging can also be supplied.
What information is required for an accurate quotation?
Please provide the workpiece material and hardness, cutting diameter, flute length, shank diameter, overall length, roughing operation, axial depth ap, radial engagement ae, holder type, coolant method, dimensional tolerance and order quantity. A tool drawing is recommended for non-standard configurations.
Technical Downloads
Access current product-range information and starting cutting references for solid carbide roughing end mill selection.
Solid Carbide End Mills Catalog
End mill families, hardness series, roughing geometries, coating options and reference sizes.
End Mill Speeds & Feeds Guide
Starting cutting speeds, chip loads, engagement guidance and adjustment notes.
Cutting data are starting references only. Adjust the values according to the exact tool diameter, flute length, workpiece hardness, axial and radial engagement, tool overhang, holder condition and machine rigidity.
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.
