WNMG 080404/080408 Carbide Turning Inserts for External Turning
WNMG 080404 and 080408 carbide inserts are designed for external turning, facing and profiling on CNC lathes. Their double-sided 80° trigon geometry provides six usable cutting edges and reliable edge support. Multiple grades and chipbreakers allow the series to serve steel, stainless steel and cast iron under grade-dependent cutting conditions.
Consistent Quality
Consistent geometry across repeat orders.
คำสั่งซื้อที่ยืดหยุ่น
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
แบบมาตรฐานและแบบตามสั่ง
Standard sizes and custom configurations.
◆Product Overview
The WNMG 080404 and WNMG 080408 carbide turning inserts are designed for stable external turning, facing and general profiling on CNC lathes. Their 80° trigon shape combines strong corner support with practical access to external workpiece features.
The double-sided negative geometry provides six usable cutting edges, helping reduce the insert cost per cutting edge in repeat production. Multiple chipbreakers, carbide substrates and PVD/CVD coating options are available for finishing, medium turning and selected roughing conditions.
Final grade and chipbreaker selection should be based on the workpiece material, hardness, depth of cut, feed rate, cutting speed and machine rigidity.
| Insert Series | WNMG 0804 | Available Models | 080404 / 080408 |
|---|---|---|---|
| Insert Shape | 80° trigon, negative | Usable Edges | Double-sided, 6 cutting edges |
| Corner Radius | 0.4 mm / 0.8 mm | Operations | External turning / Facing / Profiling |
| Processing Range | Finishing / Medium / Selected roughing | Coating Options | PVD / CVD / Uncoated options |
| Workpiece Materials | Steel / Stainless steel / Cast iron, grade dependent | Insert Material | Tungsten carbide |
| Standard Pack | 10 pieces per box | Supply Options | Standard / Mixed models / Private label |
Material compatibility and processing range depend on the selected grade and chipbreaker. Confirm the complete insert code before ordering.
◆WNMG 0804 Model Selection
| Model | Corner Radius | General Characteristic | Typical Selection |
|---|---|---|---|
| WNMG 080404 | 0.4 mm | Lower radial cutting force | Finishing and lighter external turning |
| WNMG 080408 | 0.8 mm | Stronger corner support | General medium turning and facing |
Corner radius affects edge strength, radial force, feed capability and achievable surface finish. Select it together with the holder angle and machining conditions.
◆Product and Chipbreaker Details
WNMG inserts are available with different carbide substrates, coatings and chipbreaker geometries. The correct combination should be selected according to the workpiece-material group and actual cutting conditions.
Do not identify an insert only by coating color. The complete grade and chipbreaker code is required for accurate replacement matching.
WNMG inserts are normally packed in compartment boxes to protect the cutting edges and maintain clear model, grade and batch identification. Packaging details are confirmed according to the selected models and order quantity.
- Complete WNMG insert code, grade and chipbreaker
- Compatible tool-holder model
- Workpiece material and hardness
- Turning operation, feed and cutting depth
- Required quantity and packaging preference
If the complete code is unavailable, send clear photographs of the top marking, chipbreaker surface, side profile, original box label and compatible tool holder.
◆Specifications & Size Chart
The WNMG 0804 range on this page includes two double-sided, 80° trigon carbide inserts for external turning, facing and suitable profiling operations. Both share the WNMG 0804 body size; the last two digits specify the nominal corner radius. Select the complete chipbreaker and grade for the workpiece and cutting conditions.
| Size Code | IC (D) | Thickness (S) | Hole (D1) | Corner Radius (rε) | Selection Reference |
|---|---|---|---|---|---|
| WNMG 080404 | 12.70 mm* | 4.76 mm* | 5.16 mm* | 0.4 mm | Finishing and lighter cuts |
| WNMG 080408 | 12.70 mm* | 4.76 mm* | 5.16 mm* | 0.8 mm | General medium turning and facing |
◆Geometry & Ordering Details
| Parameter | Product Selection Detail |
|---|---|
| Insert configuration | 80° trigon; 0° nominal relief; double-sided with six indexable corners when both faces and all corners are usable in the holder. |
| Operation | External turning and facing; profile access depends on holder approach angle and workpiece clearance. |
| Workpiece groups | Steel (ISO P), stainless steel (ISO M) or cast iron (ISO K), subject to the selected grade and chipbreaker. Aluminum requires a suitable dedicated geometry and grade. |
| Grade & coating | Carbide substrate; PVD, CVD and uncoated options are listed in the Overview. Availability and the approved workpiece group are confirmed by complete item code. |
| Chipbreaker & edge | Select the supplier-specific finishing, medium or suitable roughing geometry by feed, depth of cut and chip behavior; verify edge preparation. |
| Pack reference | The Overview lists 10 pieces per box. Confirm actual pack count, grade, marking and private-label requirements in the quotation. |
The ISO size code identifies the basic geometry and radius. A matching WNMG 080408 from another manufacturer can have a different chipbreaker, edge preparation, substrate and coating.
◆How to Select the Insert
For additional shape, grade and nose-radius guidance, see the CNC Insert Selection Guide.
◆Starting Cutting Data
A universal cutting-speed, feed or depth-of-cut value cannot be assigned to both size codes: the Overview does not identify one specific grade or chipbreaker. Obtain the supplier's cutting range for the complete item code and actual workpiece material. For external turning, calculate spindle speed from n = (1000 × Vc) / (π × D), where Vc is cutting speed in m/min and D is the workpiece diameter at the cut in mm.
◆Related Series & Technical References
Explore other shapes in our carbide turning and milling insert range. For the WNMG 080404 or 080408 drawing, holder fit, current grade and chipbreaker options, send the complete insert and holder codes with the workpiece and quantity.
◆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 are WNMG 080404 and WNMG 080408 used for?
They are double-sided, 80° trigon inserts used with a compatible holder for external turning and facing. General profiling is possible where the holder approach angle and workpiece geometry provide enough clearance. Select the grade and chipbreaker for the specific material and operation.
What is the difference between 080404 and 080408?
They share the nominal WNMG 0804 body size. The final two digits indicate 0.4 mm and 0.8 mm corner radii respectively. The 0.4 mm radius may suit lighter finishing cuts; 0.8 mm gives more corner support but can raise radial force. Finish also depends on feed, chipbreaker and setup stability.
How many usable cutting edges does a WNMG insert have?
The double-sided trigon form has three corners per face, giving six indexable corners in the normal arrangement. Actual use of each edge depends on insert condition, chipbreaker and holder access. Index the insert when wear or damage reaches the application limit.
Can these inserts machine steel, stainless steel and cast iron?
The Overview lists all three as grade-dependent workpiece groups. Confirm the actual steel, stainless or cast-iron grade and hardness, then choose a supplier-approved substrate, coating and chipbreaker. The WNMG size code alone does not qualify one insert for every material.
Will both radii fit the same tool holder?
A holder designed for the same WNMG 0804 seat may accept both body sizes, subject to its clamp and manufacturer's specification. Check insert tolerance, hole and seat fit, holder direction, approach angle and clearance. A larger corner radius may limit access to a tight profile.
How do I choose a chipbreaker and cutting parameters?
Provide the workpiece grade and hardness, finishing or medium-cut requirement, feed, depth of cut, coolant and cut continuity. Confirm a chipbreaker and carbide grade with published operating ranges for the complete insert code. Start within those ranges and check chip control, wear and surface finish in a trial.
◆Ordering & OEM FAQs
What do you need to match my current WNMG insert?
Send the complete insert code, original manufacturer, grade and chipbreaker, photographs of the marking and both faces, box label, holder model, workpiece material, cutting conditions and required quantity. Confirm the proposed replacement by holder-fit and machining trials.
Can I order 080404 and 080408 together?
Send a line-by-line list of each complete model, grade, chipbreaker and quantity. Mixed-model supply, stock status, MOQ and delivery time are confirmed for each item. The Overview gives 10 pieces per box as the standard pack reference.
Can I request samples before production ordering?
Provide the full code, holder, workpiece and intended cutting conditions. Confirm sample availability by configuration, then compare chip control, insert wear, finish and cost per accepted part under the same setup.
Are private-label boxes and custom labels available?
The Overview lists neutral and private-label packaging, customer SKU and barcode labels. Send the artwork, required marking, pack count and forecast quantity for feasibility, minimum quantity and lead-time confirmation.
◆Guides & Technical References
Use the CNC Insert Selection Guide for shape, grade, radius and chipbreaker selection. The Carbide Insert Types Guide explains other insert families.
For a WNMG 080404 or 080408 drawing, application-specific cutting data or quotation, send the full insert and holder codes with your workpiece 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.
