WNMG 080404/080408/080412 Coated Carbide Turning Inserts for Steel
WNMG0804 double-sided carbide turning inserts are designed for stable external turning, facing and profiling of steel, stainless steel and cast iron. Available in multiple grades, coatings, chipbreakers and corner radii, the series supports finishing, medium machining and roughing with reliable chip control, strong edges and consistent quality across repeat orders.
Consistent Quality
Consistent geometry across repeat orders.
Flexible Orders
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
Standard & Custom
Standard sizes and custom configurations.
WNMG0804 Series Overview
WNMG0804 is a double-sided, 80° trigon turning-insert series commonly used for external turning, facing and profiling. The WNMG080404, WNMG080408 and WNMG080412 models provide different nose-radius options for finishing, general turning and roughing requirements.
Insert performance depends on the selected carbide grade, coating, chipbreaker, workpiece material and cutting conditions. Buyers comparing ISO codes can also read our
carbide insert selection guide
before confirming an order.
Models & Selection Reference
The table below provides a general ordering reference. Grade, chipbreaker, coating and availability should be confirmed for each order.
| Model | Nose Radius | Typical Positioning | Operations | Pack | Supply |
|---|---|---|---|---|---|
| WNMG080404 | 0.4 mm | Finishing / Light Cutting | Turning / Facing / Profiling | 10 pcs / box | Confirm grade |
| WNMG080408 | 0.8 mm | General Turning | Turning / Facing / Profiling | 10 pcs / box | Confirm grade |
| WNMG080412 | 1.2 mm | Roughing / Stronger Edge | Turning / Facing | 10 pcs / box | Confirm grade |
Nose radius alone does not determine the final application. Please confirm the workpiece material, cutting condition, grade, coating and chipbreaker before ordering.
Application Selection
WNMG080404
Smaller nose radius for lighter cutting conditions, profile accuracy and finishing-oriented applications.
WNMG080408
General-purpose nose radius balancing cutting-edge strength, machining stability and surface finish.
WNMG080412
Larger nose radius for stronger edge support in suitable roughing and heavier cutting conditions.
For customers stocking several turning-insert geometries, explore our
carbide turning and milling insert range
to compare WNMG with CNMG, DNMG, SNMG, TNMG and VNMG series.
WNMG0804 Machining Demonstration
Actual machining demonstration showing the cutting stability, chip evacuation and surface performance of the WNMG0804 carbide turning insert under the displayed cutting conditions.
Results may vary according to the insert grade, chipbreaker, workpiece material, machine rigidity and cutting parameters.
Geometry, Coating & Product Details
Different chipbreakers and coating appearances may be supplied according to the selected grade and workpiece material. Product images are for series and geometry reference; confirm the exact code before ordering.
Distributor Supply Support
Packaging & Private Label
Standard reference packaging: 10 inserts per plastic box
Model, grade, chipbreaker and batch information shown on the label
Neutral, private-label and customer-SKU labels available
Carton quantity, size and weight confirmed according to the order mix
Quality & Batch Consistency
Dimension Check
Edge Inspection
Batch Identification
Label Verification
◆Specifications & Size Chart
This WNMG0804 series covers three coated carbide turning-insert size codes for steel machining. WNMG is a double-sided, 80° trigon insert with a 0° relief angle. The final two digits of each listed code identify the nose radius. Confirm the full chipbreaker and carbide grade alongside the dimensional code when ordering.
| Size Code | Nose Radius (rε) | Selection Reference | Operations | Pack Reference |
|---|---|---|---|---|
| WNMG080404 | 0.4 mm | Finishing / light cuts | Turning, facing and profiling | 10 pcs / box |
| WNMG080408 | 0.8 mm | General turning | Turning, facing and profiling | 10 pcs / box |
| WNMG080412 | 1.2 mm | Roughing / stronger edge support | Turning and facing | 10 pcs / box |
◆Specification Checklist by Model
| Parameter | What to Confirm for the Exact Insert |
|---|---|
| Full ordering code | WNMG080404, 080408 or 080412, plus the supplier chipbreaker suffix and carbide grade. |
| Body dimensions | Inscribed circle, cutting-edge length, thickness, fixing hole and seat fit from the current drawing. |
| Nose radius | 0.4, 0.8 or 1.2 mm for the three size codes shown above. |
| Chipbreaker and edge | Finishing, medium or roughing geometry, edge preparation and the supplier's feed and depth-of-cut window. |
| Grade and coating | Exact carbide grade, coating designation and approved steel workpiece range for the ordered code. |
| Holder and supply | Holder pocket and clamping fit; final pack quantity, stock status, MOQ and lead time. |
◆How to Select a WNMG Insert
For shape, grade and nose-radius selection, see the CNC Insert Selection Guide.
◆Starting Cutting Data
The supplied page does not identify one carbide grade, chipbreaker or steel grade for all three size codes. Obtain a starting cutting-speed, feed-per-revolution and depth-of-cut range for the complete ordered insert and actual workpiece. Adjust within the grade supplier's recommended window for holder overhang, cut continuity, coolant and machine stability.
◆Related Series & Technical References
For other turning-insert shapes, see our carbide turning and milling insert range. For the exact WNMG grade, chipbreaker, dimensional drawing and cutting data, send the full insert and holder codes with the workpiece and intended operation.
◆Carbide Insert Customization & OEM
Specify the insert around the machining operation, workpiece and holder. We can review standard replacements, application-specific geometry and private-label requirements using your insert designation, drawing or sample. Available grades, coatings, dimensions and order quantities are confirmed for each requested series.
Geometry & Chip Control
Review chipbreaker, rake, cutting-edge preparation, nose radius and corner design for the operation and workpiece. Confirm holder compatibility before approving a modified geometry.
Substrate & Coating
Select an available carbide grade and coating for the workpiece material, cutting conditions and desired balance of wear resistance and edge toughness.
Dimensions & OEM
Review insert size, thickness, locating and clamping features, tolerances, laser marking and private-label packaging against the approved specification.
◆Customization Options
Use the fields below when sending an inquiry. The exact options depend on the insert family and are confirmed in the quotation or approved drawing.
| Specification | Details to Confirm |
|---|---|
| Insert Type | Turning, milling, threading, grooving or drilling insert; send the designation or drawing. |
| Size & Fit | Shape, size, thickness, inscribed circle or edge length, hole or clamping form, and holder model. |
| Cutting Geometry | Chipbreaker, nose or corner radius, edge preparation, cutting direction and application-specific profile. |
| Grade & Coating | Workpiece group and grade, carbide substrate, coating system and wet or dry cutting conditions. |
| Tolerance & Inspection | Critical dimensions, profile requirements, inspection method and any required report. |
| OEM Presentation | Insert or box marking, label content, packaging format and quantity per pack. |
◆How to Request a Custom Insert
Send your insert requirements through our contact form or review our OEM and private-label service.
◆Carbide Insert Quality Control
Insert quality depends on the approved grade, geometry, coating and dimensional specification. We review the requirements at order confirmation and align the inspection scope with the insert series and any customer drawing. Share critical dimensions or documentation needs before production so they can be included in the agreed inspection plan.
01 · Incoming Material
Confirm the specified carbide grade or material documentation against the order requirements.
02 · In-Process Checks
Review dimensions and cutting-edge features during production against the approved specification.
03 · Final Inspection
Check the agreed dimensions, appearance, edge condition, coating identification and marking as applicable.
04 · Packing Review
Verify the item code, quantity, labels and protective packing against the approved order.
◆Inspection & Documentation
Inspection points and acceptance criteria should be agreed for the ordered series. For custom inserts, the approved drawing takes priority over a generic catalogue description.
| Check Area | What to Confirm |
|---|---|
| Dimensions & Fit | Insert size, thickness, corner radius, clamping features and any drawing tolerances. |
| Cutting Geometry | Chipbreaker, edge preparation, usable corners and profile where applicable. |
| Grade & Coating | Approved grade and coating designation; any requested verification method. |
| Appearance & Packing | Visible edge damage, marking, item code, count and packing format. |
| Requested Records | Inspection report, material or coating documentation, sample approval or batch identification when agreed. |
◆Order & Delivery
Share a line-by-line list of insert codes and quantities for a mixed-size quotation. Stock status, minimum quantity, sample requirements and production lead time are confirmed for each grade, coating and configuration.
Send your item list and quality requirements through our contact form for specification, availability and delivery confirmation.
◆Product FAQs
What is a WNMG0804 turning insert?
WNMG0804 is a double-sided, 80° trigon turning-insert size family with a 0° relief angle. It is used for compatible external turning, facing and profiling operations. Confirm the holder pocket, clamping system and complete insert designation before selecting a replacement.
What is the difference between WNMG080404, WNMG080408 and WNMG080412?
The three size codes have nominal nose radii of 0.4, 0.8 and 1.2 mm respectively. The smaller radius is a finishing or light-cutting option; 0.8 mm is a general turning reference; 1.2 mm can provide stronger corner support for a suitable heavier cut. The actual application also depends on chipbreaker, grade and cutting conditions.
How do I select a WNMG insert for steel?
Provide the steel grade and hardness, machining operation, continuous or interrupted cut, coolant, holder model and required finish. Then select a supplier-approved carbide grade, coating and chipbreaker for those conditions. The WNMG0804 body code alone does not specify the steel-cutting grade.
Can I replace another manufacturer's WNMG080408 directly?
First compare the full designation, dimensional drawing, fixing hole, chipbreaker, edge preparation, carbide grade and coating. Check the insert against the actual holder pocket and run a controlled trial; a matching WNMG080408 size code does not guarantee identical chip control or tool life.
What cutting speed, feed and depth of cut should I use?
Starting data must be matched to the complete grade and chipbreaker, steel grade and hardness, cut continuity, coolant and machine rigidity. The product page does not establish one numerical setting for every WNMG0804 variant. Obtain grade-specific data and adjust after a trial cut.
Does the machining video show guaranteed performance?
The video demonstrates one machining setup. Chip formation, surface finish and wear may differ with the insert grade, chipbreaker, workpiece, holder and cutting parameters. Use it as a visual reference and validate the selected specification on your own machine.
◆Ordering & OEM FAQs
Can I combine the three nose-radius models in one order?
Send each complete model, chipbreaker, grade and quantity as a separate line item. Mixed-model availability, minimum order quantity and dispatch timing are confirmed by configuration.
How are the inserts packed?
The supplied product page lists 10 inserts per plastic box as the standard reference. Confirm the final pack quantity, model and grade labeling, carton details and any special packaging requirements in the quotation.
Can I request private-label packaging or customer SKU labels?
The product page offers neutral and private-label packaging. Provide the label artwork, barcode or SKU format, insert code, grade, pack quantity and order volume so marking and packaging feasibility can be confirmed before production.
What should I provide to request a sample or quotation?
Send the complete insert and holder codes, steel grade and hardness, operation, current cutting parameters, required quantity and any existing box-label photos. For a trial, agree on the grade and evaluation criteria before comparing wear, chip control and cost per accepted part.
◆Guides & Technical References
Use the CNC Insert Selection Guide for shape, nose-radius, grade and chipbreaker selection. The Carbide Insert Types Guide explains other insert families.
For a WNMG dimensional drawing, grade-specific cutting data or quotation, send the full insert and holder codes with your workpiece, operation and quantity.
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.
