Indexable Carbide Turning Inserts - Full Series (CNMG/TNMG/SNMG/WNMG/DNMG)

About This Series

We offer a full line of indexable carbide turning inserts, built to handle just about any turning job you throw at them.

From general-purpose steel turning to heavy roughing and precision copy turning, there's a shape and grade here that will fit your material, machine, and production needs.

Which Insert Is Right for Your Job?

• CNMG 80° Diamond: The most versatile "workhorse" insert. Perfect for carbon steel and stainless steel turning, from roughing to semi-finishing. Always a safe bet for most standard turning jobs.
• TNMG Triangle: With a smaller tip angle, it's ideal for complex profiles, internal boring, and light-duty turning. Great for parts that need tricky contour work.
• SNMG Square: 90° tip angle means maximum rigidity. It shines in heavy-duty face turning, step turning, and cast iron machining.
• WNMG 83° Peanut: The toughest of the bunch. Excellent impact resistance makes it the go-to for heavy roughing and interrupted cuts on cast parts.
• DNMG 55° Diamond: Small tip angle for superior copy turning ability. Perfect for fine finishing, precision profiles, and slender shaft work.

Recommended Cutting Parameters (For Reference)

These are typical starting points for common materials. You can adjust them based on your machine and setup:

Carbon steel roughing: Vc 150–220 m/min, f 0.2–0.4 mm/rev, ap 2–4 mm

Stainless steel semi-finishing: Vc 100–160 m/min, f 0.15–0.3 mm/rev, ap 1–2 mm

Cast iron turning: Vc 120–180 m/min, f 0.15–0.3 mm/rev, ap 1.5–3 mm

Material & Hardness Details

Made from premium WC-Co carbide with a uniform grain structure for consistent hardness and toughness.

Available with TiN, TiCN, and AlTiN coatings, each optimized for different materials and cutting conditions.

Typical hardness ranges from HRA 91–93, so you get reliable wear resistance without sacrificing impact strength.

Every batch of raw material is tested for composition and hardness to ensure stability.

Precision & Compatibility

All inserts are manufactured to standard ISO dimensions with tight tolerances. Key dimensions are controlled within ±0.01mm, so they fit most common turning tool holders right out of the box.

No special adjustments needed for standard setups.

Typical Service Life

Carbon steel roughing: 80–120 parts per edge (varies with parameters)

Stainless steel semi-finishing: 60–100 parts per edge

Batch-to-batch consistency is controlled, so you won't see huge variations in tool life from one run to the next.

Custom Options We Offer

Special dimensions, corner radii, and chipbreaker geometries

Custom grades and coatings for hard-to-machine materials

Edge preparations like honing or chamfering

OEM/ODM service available based on your drawings or samples. Small trial orders are welcome.

Our Quality Control Process

Raw material inspection: Checks for composition, hardness, and density.

In-process control: Key dimensions and geometry are verified at every major stage.

Post-coating verification: Coating thickness, adhesion, and color consistency are checked.

Final inspection: 100% visual and dimensional check to eliminate defects like burrs or chipped edges.

Certifications & Compliance

ISO 9001 certified quality management system

RoHS-compliant materials and coatings, meeting international export standards.

Lead Time & Capacity

Standard stock items: 7–10 working days

Custom orders: 15–25 working days

Monthly production capacity of over 300,000 inserts, so we can handle large volume orders.

Packaging & Shipping

Each insert is individually packaged in a plastic case with anti-corrosion treatment.

Shipped in shockproof outer cartons to prevent edge chipping during transit.

OEM packaging options are available upon request.

After-Sales Support

We provide tool selection guidance and cutting parameter recommendations.

Sample testing is available to help you verify performance on your own parts.

Replacement policy for quality issues, plus ongoing technical support.

FAQ

Q: Will these inserts fit my existing tool holders?

A: Yes, all inserts follow standard ISO dimensions and are compatible with most common turning tool holders. If you share your holder model, we can confirm compatibility.

Q: Can I get samples to test?

A: Absolutely. We welcome sample orders so you can try them on your own machine first.

Q: Do you have grades for stainless steel or cast iron?

A: Yes, we offer grades and coatings specifically optimized for different materials. Just let us know your exact application, and we'll recommend the best fit.

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