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MSU-Manufactured Carbide End Mills

Roughing End Mills

MSU manufactures solid carbide roughing end mills in the NNC-4RF, NNH-4RF and 4HROU catalog groups. These roughing milling cutters are reviewed for stock-removal operations using the required material, tool geometry and machining setup.

Compare the available groups by material, diameter, corner radius, flute geometry and coating requirement. Send the exact catalog code when known, or provide the stock condition, operation and complete tool dimensions for review.

Send the material, stock condition, diameter, corner radius and operation for selection review or quotation.

Request a Roughing End Mill Review

Explore Roughing End Mills

The MSU solid carbide roughing range consists of three product groups: NNC-4RF, NNH-4RF and 4HROU.

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NNC-4RF

Corner-radius geometry

Solid carbide rough-milling cutter group with corner-radius geometry. The short catalog code can appear in more than one dimensional configuration, so include the complete dimensions when preparing an inquiry.

NNH-4RF

Corner-radius geometry

Solid carbide rough-milling cutter group with corner-radius geometry. Confirm the workpiece material, hardness, dimensions, flute geometry and coating with the complete ordering reference.

4HROU

19 catalog codes

Roughing end mill group with 19 catalog codes. Confirm the exact code, dimensions, geometry, material and operation before selection or quotation.

Use Corner Radius End Mills for standard corner-radius tools and Square End Mills for flat-end configurations. Use Carbide End Mills to compare the complete end-mill range.

Compare the three roughing groups and the details required to identify the correct configuration.

Compare Roughing End Mill Groups

Compare Series and Configurations

Choose a catalog group only after matching it to the workpiece, stock condition and machining setup. A group name identifies the catalog route; the complete dimensions and application conditions establish the configuration to review.

MSU roughing end mill groups NNC-4RF, NNH-4RF and 4HROU compared by catalog scope, code guidance and the details required for selection review.
Catalog group Catalog scope Code guidance Required details
NNC-4RF Solid carbide rough-milling cutter group with corner-radius geometry A short diameter code may appear in more than one dimensional configuration Complete dimensions, material, operation, flute geometry, coating and ordering reference
NNH-4RF Solid carbide rough-milling cutter group with corner-radius geometry A short diameter code may appear in more than one dimensional configuration Complete dimensions, material and hardness, operation, flute geometry, coating and ordering reference
4HROU Roughing end mill group with 19 catalog codes Use the exact catalog code together with its dimensional data Diameter, cutting length, shank, overall length, geometry, material and operation

Also provide the corner radius, reach, stock allowance, tool engagement, machine, holder, coolant and workholding conditions. MSU reviews these inputs together before confirming the applicable catalog configuration.

Continue to the stock, workpiece and setup details needed for roughing-tool review.

Review Roughing Application Inputs

Choose Roughing End Mills for Your Application

Roughing-tool review begins with the material to be removed and the rigidity of the complete setup. Use the End Mill Selection Guide to review geometry, workpiece material and setup. Provide the following information together:

  • Workpiece material, grade, hardness and starting stock condition.
  • Operation, pocket or profile geometry, stock allowance and the intended roughing stage.
  • Required diameter, corner radius, cutting length, reach, shank and overall-length limits.
  • Required flute geometry and coating, if already specified.
  • Planned axial and radial engagement, toolpath and chip-evacuation method.
  • Machine, spindle interface, available power or torque information, holder, overhang and workholding.
  • Coolant or air method, quantity, destination country and target date.
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  • Steel and Pre-Hardened Steel Milling

    Use this route to organize the material and application details for steel and pre-hardened steel.

  • Hardened Steel Milling

    Use this route when the workpiece is hardened steel and include the confirmed hardness.

  • Custom Cutting Tools

    Use this route when the required diameter, radius, reach, flute form or ordering configuration is not available in the current catalog.

Send the stock condition, tool envelope and complete machining setup together for review.

Send Roughing End Mill Requirements

Roughing End Mills Series and Specifications

The catalog range contains three roughing product groups. NNC-4RF and NNH-4RF require complete dimensional information because a short code can appear in more than one configuration. The 4HROU group contains 19 catalog codes.

MSU roughing end mill groups NNC-4RF, NNH-4RF and 4HROU with catalog description, catalog configurations and the configuration to confirm.
Group Catalog description Catalog configurations What to confirm
NNC-4RF NNC rough-milling cutter group Group codes and dimensional configurations Complete dimensions and ordering reference
NNH-4RF NNH rough-milling cutter group Group codes and dimensional configurations Complete dimensions, workpiece hardness and ordering reference
4HROU Roughing End Mill 19 catalog codes Exact code and required dimensions
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For every group, confirm the material, diameter, corner radius, flute geometry, cutting length, reach, shank, overall length, coating and complete ordering reference. A catalog code identifies a catalog configuration; current availability is confirmed during quotation.

The Downloads page provides the current roughing and carbide end mill catalogs. When a short NNC-4RF or NNH-4RF code is provided, MSU checks the complete dimensional configuration before selection or quotation.

Open the document hub for the current roughing and carbide end mill catalogs.

View Roughing End Mill Catalogs

Manufacturing and Quality Control

Roughing End Mills are an MSU-manufactured product line. The catalogs establish the NNC-4RF, NNH-4RF and 4HROU groups in this range.

The MSU Factory has Walter HELITRONIC MICRO equipment. MSU’s Quality Control facilities include a ZOLLER G3 measurement system. For an order, the selected diameter, corner radius and other acceptance requirements are confirmed against the catalog configuration, quotation, order or approved drawing.

Product-specific geometry, runout, tolerance, surface-finish requirements and inspection items are confirmed for the selected configuration and order conditions.

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Review the documented quality workflow and the information used to confirm order-specific geometry.

Review Quality Control

Ordering and Technical Support

Send the group and exact code when known. For NNC-4RF and NNH-4RF, include the full diameter, corner radius, cutting length, reach, shank and overall-length requirement. Also include the flute and coating requirement, workpiece and hardness, operation, engagement, machine, holder, coolant, quantity, destination and target date.

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MOQ

MOQ is normally 5–10 pieces, with the final quantity confirmed by product and quotation.

Samples

Samples are charged according to the product, and sample freight is paid by the customer.

Lead time

Completion of the whole order is guaranteed within 25–30 days from order placement.

Payment

T/T with deposit and balance is supported. Percentages and payment milestones are stated in the quotation or order.

Trade terms

EXW, FOB, CIF and DDP can be discussed and are confirmed by order, destination and feasibility. Quotations remain valid for 30 days.

Packaging

Packaging is confirmed in the quotation or order.

After-sales review

Report an issue within 30 days after receipt and include applicable photos, batch number, measurement report or video. Each issue is reviewed case by case.

Contact

Inquiries are received by Maria at maria@msutools.com or +86 13973369578 by phone or WhatsApp.

Send the complete roughing-tool requirement through Contact MSU and use Downloads for the current catalogs.

Review the shared ordering terms before sending the complete roughing-tool requirement.

Review Ordering and Delivery

Roughing End Mill Selection Questions

The MSU range contains NNC-4RF, NNH-4RF and 4HROU. All three are solid carbide roughing groups. Indexable milling cutters are separate product types.

NNC-4RF, NNH-4RF and 4HROU are the three solid carbide roughing groups. Standard non-micro Corner Radius End Mills have a flat cutting end with a defined tool corner radius and are compared by that geometry.

Not reliably. A short diameter code can appear in more than one dimensional configuration. Send the complete dimensions or the full catalog reference so the ordering configuration can be confirmed.

The current catalog contains 19 4HROU catalog codes. The count describes catalog entries and does not indicate current inventory.

Send the workpiece material and hardness, stock condition, operation, stock allowance, engagement, machine, holder, coolant, required geometry and quantity.

No. The group name identifies the catalog route. Recommendations depend on the exact tool, workpiece and operating conditions provided for review.

Completion of the whole order is guaranteed within 25–30 days from order placement.