Indexable Turning Inserts WNMG for Steel, Stainless Steel, Hardened Steel and Aluminium (10 pcs)
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5-axis vise with hard jaws
Self-centering machine vise. Hard jaws included.
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Individual variants may differ in price
Product code: 6C3D-1961B
Product description
WNMG indexable inserts are intended for external turning. They have a triangular shape, a mounting hole and six usable cutting edges, three on each face. Select the variant by its complete designation: size, chipbreaker geometry and grade together determine its application.
The pack contains 10 inserts of one selected variant. The assigned variant image shows the exact version and key information about the workpiece material and machining operation. Before adding the product to your basket, compare the complete insert code with the version currently used and check the card displayed after selection.
1. Applications
This family is used in turning holders designed for WNMG inserts, including MWLNR, MWLNL, SWLNR and SWLNL systems. The range includes variants for different material groups and for finishing, semi-finishing and roughing. The WNMG shape alone does not establish the application: check the complete name and selected variant card.
| Operation | What to check when selecting |
|---|---|
| External turning | The holder pocket must match the WNMG family and required insert size. |
| Finishing | A variant identified on its card as intended for finishing, with a corner radius suited to the task. |
| Semi-finishing | A grade matched to the material and a geometry identified for semi-finishing. |
| Roughing | A version whose card explicitly identifies roughing; do not select by insert colour alone. |
Different chipbreakers and grades occur within this family. Two inserts with the same basic size may have different applications, so the abbreviated size code is not enough for selection.
2. Construction and reading the designation
WNMG identifies a triangular insert family with a defined tolerance class and mounting hole. The following part of the code gives the size and corner radius; an additional symbol after the size distinguishes the geometry or chipbreaker. The final part of the variant name identifies the grade.
| Part of the designation | Meaning for selection |
|---|---|
| WNMG | Insert family and construction. This part must match the holder pocket. |
| Size code | Identifies the insert size, thickness and corner radius. Compare the complete number sequence. |
| Geometry symbol | Distinguishes the chipbreaker or cutting-edge version. Its application is given on the variant card. |
| Grade | Identifies the workpiece group and operating range confirmed for that variant. |
Store variant names combine the complete size, geometry and grade. Do not transfer the application from one version to another simply because the inserts look similar.
3. Sizes and corner radius
The family contains four basic size-code endings. The last two digits identify the corner radius. The radius forms part of the insert designation and is not selected independently of its size.
| Size-code ending | Corner radius | Check before ordering |
|---|---|---|
| 02 | 0,2 mm | Compare the complete code with the insert currently used. |
| 04 | 0,4 mm | Also check the geometry symbol and grade. |
| 08 | 0,8 mm | Do not substitute another radius without checking the process. |
| 12 | 1,2 mm | Confirm that the size matches the holder pocket. |
Read the complete designation from the packaging or an unworn area of the insert. If it is illegible, check the holder documentation and measure the insert rather than selecting by photograph alone.
4. Selecting a grade for the material
Grades in this product include versions for steel, stainless steel, cast steel, cast iron, hardened materials, titanium and nickel alloys, and aluminium and copper. Hardness ranges and operations differ between variants. Check the card displayed after selecting the exact option.
| Workpiece material | Examples listed for variants | How to confirm the selection |
|---|---|---|
| Steel | 45 steel, Q235, 40Cr and spring steels, depending on the grade. | Select a card that specifies steel and check the permitted hardness. |
| Stainless steel | AISI 201, 304 and 316 and duplex steels, where explicitly listed on the card. | Select a stainless-steel variant rather than assuming a general-purpose application from appearance. |
| Cast steel | Cast steel and steel castings. | Check the card’s cast-steel designation and stated HB range. |
| Cast iron and castings | Grey and ductile cast iron and common casting materials, depending on the grade. | Do not treat cast-steel and cast-iron variants as automatically equivalent. |
| Hardened materials and tool steels | Hardened, tool, mould and case-hardened steels, as listed on the variant card. | Compare the actual workpiece hardness with the HRC limit shown on the card. |
| Aluminium and copper | Aluminium, copper and brass, for suitable variants in this group. | Select a version whose card explicitly identifies non-ferrous metals. |
Note: coating colour alone does not identify the intended workpiece material. Different grades can look similar; the complete variant name and card determine the application.
5. Geometry and machining operation
The symbol after the size code distinguishes the cutting-edge or chipbreaker version. Different geometries cover different operating ranges. Variant cards identify finishing, semi-finishing, roughing or a combination of these applications.
Not every geometry symbol is offered in every size and grade. The variant list shows the combinations available for selection. When replacing an insert, keep the complete code or deliberately select another geometry for the changed machining conditions.
6. Holder compatibility and installation
The insert must match the holder pocket in family, size and clamping method. WNMG alone does not establish dimensional compatibility. Holder families include MWLNR, MWLNL, SWLNR and SWLNL, but check the documentation for the exact holder.
| Check | What to compare |
|---|---|
| Insert family | The holder pocket must be specified for a WNMG insert. |
| Pocket size | Compare the size section of the insert code with the holder documentation. |
| Pocket condition | Clean seating surfaces without chips trapped beneath the insert. |
| Clamping | Correct seating and tightening for the holder design. |
Remove chips and dirt from the pocket before installation. The insert should rest against the support surfaces. After one cutting edge wears, it can be indexed to the next corner. After using the three corners, turn it over to use the other face, provided the insert is undamaged.
7. Selecting the correct variant
- Check the holder. Identify the required insert family and size code.
- Identify the material. Record the material type and hardness where relevant to the process.
- Select the operation. Determine whether finishing, semi-finishing or roughing is required.
- Compare the complete name. Include the geometry symbol and the grade at the end of the designation.
- Open the variant card. Confirm the workpiece materials, examples, hardness and operation.
- Check the pack quantity. The selected variant is sold as a pack containing 10 identical inserts.
| If you know… | Selection method |
|---|---|
| The complete code of the existing insert | Select the identical complete designation from the variant list. |
| Only the holder designation | Check its documentation for the insert family and size, then select the grade for the material. |
| The material and operation | First establish the pocket size, then filter variants using the card information. |
| Only the insert’s appearance | Do not select by photograph alone; read the designation or holder documentation. |
After changing the variant, set cutting conditions for the material, geometry, clamping stability and recommendations for the selected grade. This product includes different versions, so one universal cutting speed, feed or depth of cut would not be correct for every option.
8. Frequently asked questions
How many inserts are in the pack?
The pack contains 10 inserts of one selected variant.
How many cutting edges does one insert have?
The insert is double-sided with six usable cutting edges, three on each face.
Are all WNMG variants suitable for steel?
No. This family includes versions for different workpiece groups. Check the exact variant card for its application.
Is the size alone enough to select an insert?
No. The geometry and grade must also suit the material and operation.
How do I identify the corner radius?
The last two digits of the size code identify the radius: 02 means 0,2 mm, 04 means 0,4 mm, 08 means 0,8 mm and 12 means 1,2 mm.
Which holders do these inserts fit?
Holders with a pocket specified for the WNMG family and insert size, including MWLNR, MWLNL, SWLNR and SWLNL groups. Confirm compatibility against the exact holder designation.
Can I select a variant by colour?
No. Similar colour does not establish the grade or application. Compare the complete name and variant card.
What if the old insert designation is illegible?
Check the holder documentation and pocket dimensions. Do not select a replacement by photograph alone.
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