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Milling / LNMU
LNMU Fast Feed Milling Inserts
Find the right LNMU by complete model code, dimensions and catalog grade. Search the table below or send your current code for a match.
high-feed milling in a cutter designed for the specified insert
Indexable Milling
- Catalog models
- 1
- Dimensions
- W · S · d · r
- Catalog grades
- 4 options
Model Reference
Catalog Models & Dimensions
Search by complete designation, compare dimensions and select a model to include it in your inquiry.
How to choose
1 · Size: match the complete model code and the listed dimensions, including corner radius where shown.
2 · Grade: compare SP1251A · SP1251B · SP1251D · SP1251F. R means catalog recommended; O means catalog order option.
3 · Fit: include your workpiece material and holder or cutter code when requesting a quote.
Swipe or scroll horizontally to view every column.
| Select | Full model | W (mm) | S (mm) | d (mm) | r (mm) | Catalog grade mark |
|---|---|---|---|---|---|---|
| LNMU0303ZER-MJ | 6 | 4.3 | 2.9 | 1.2 | SP1251A (O) / SP1251B (O) / SP1251D (R) / SP1251F (R) |
No listed models match your search. Try a shorter code or describe your requirement.
Select a model above. You can also use the general quote button at the top of this page.
Need another size? Search all catalog models →
Pocket Compatibility
Insert, Pocket & Tool Matching
Confirm the insert size, seat, clamping method and complete holder, cutter or drill-body designation before ordering a replacement.
Swipe or scroll horizontally to view every column.
| Matching item | What to confirm |
|---|---|
| Cutter pocket | The listed LNMU0303ZER-MJ requires a cutter body with the matching seat and screw. |
| Cutter setup | Provide body designation, diameter, tooth count and arbor or shank interface. |
| Application | Provide workpiece material, width of cut and machine power for a model-specific recommendation. |
Grade and Geometry
Workpiece, Geometry & Grade Selection
Operation, workpiece group, cutting continuity, coolant, machine stability and finish target determine the quoted geometry, grade and coating.
Swipe or scroll horizontally to view every column.
| Selection input | Quotation requirement |
|---|---|
| Operation | high-feed milling in a cutter designed for the specified insert |
| Tool interface | Match the complete holder or cutter designation and insert seat. |
| Workpiece | Identify alloy, hardness condition, interruption and required finish. |
| Quotation | Confirm geometry, grade, coating, quantity and destination. |
Application Inputs
Select by Workpiece and Cut
Tell us the workpiece group and operation stage. We then check the available grade, edge, coating and machine setup for the quoted tool.
Workpiece groups
- PSteel
- MStainless steel
- KCast iron
- NNon-ferrous / aluminum
- HHardened materials
Machining stage
- FinishingSurface finish and dimensional control priority
- MediumBalanced general machining
- RoughingMaterial removal and edge strength priority
Tooling Package
Match the Cutting Tool to the Holder
LNMU insert + matching high-feed cutter body
Quote as one set
Insert or cutting tool, holder/body, and spare screw, clamp or wrench only when itemized in the quotation.
Fit check
Verify full designations, seat or shank, hand, screw and machine interface before ordering.
Related Products
Ordering Support
Frequently Asked Questions
What should I include in an inquiry?
Send the full LNMU0303ZER-MJ designation, cutter code, material, quantity and drawing where available.
Does the photograph confirm the supplied variant?
No. Confirm the complete designation, grade, coating and cutter interface in the quotation.
Can I request a sample?
Request a sample for the intended specification. Availability, sample terms and delivery timing are confirmed in the quotation.
Specification-Led Quotation
Discuss Your Application
Send your model, material, operation and quantity.
We will review the tool interface and quotation variables before confirming an offer.