At CNC Tools Depot, we bring you the world’s largest selection of TNMM carbide inserts, sourced from trusted brands like Korloy, Widia, Kennametal, Taegutec, Mitsubishi, Iscar, and Sandvik. Designed for precision, durability, and efficiency, TNMM inserts are widely used in turning operations across various industries including automotive, aerospace, die & mold, and general engineering.

🔹 What are TNMM Carbide Inserts?

The designation TNMM follows ISO insert coding standards:

• T = Triangle shape (3 cutting edges per side)

• N = 0° relief angle (neutral)

• M = Tolerance class (medium tolerance)

• M = Insert clamping system (screw or clamp)

This makes TNMM inserts strong, economical, and versatile for roughing to finishing operations in CNC lathes.

🔹 Applications of TNMM Inserts

TNMM carbide inserts are ideal for:

• Turning – Internal and external turning on CNC and conventional lathes.

• Facing – Producing smooth and flat surfaces.

• Profiling – Contour machining with accuracy.

• Heavy-Duty Machining – Thanks to strong triangular geometry.

• Steel, Stainless Steel & Cast Iron Machining – Different grades available for different materials.

🔹 Types of TNMM Carbide Inserts

Depending on grade, coating, and chipbreaker design, TNMM inserts are available in:

1. Uncoated TNMM Inserts – For non-ferrous metals, plastics, and light cutting.

2. CVD Coated TNMM Inserts – For high-speed steel and cast iron turning.

3. PVD Coated TNMM Inserts – Best for stainless steel and tough alloys.

4. TNMM Roughing Inserts – Strong edge for heavy material removal.

5. TNMM Finishing Inserts – Sharp edges for fine surface finish.

6. Multi-Grade TNMM Inserts – Versatile inserts for different materials (steel, alloy steel, cast iron).

🔹 Advantages of TNMM Inserts

• Economical with 6 cutting edges per insert (3 per side).

• Strong design with 0° relief for heavy-duty stability.

• Suitable for high-feed cutting and long tool life.

• Wide availability in multiple chipbreaker styles.

• Compatible with a range of tool holders across brands.

🔹 Popular Brands Offering TNMM Inserts

At CNC Tools Depot, you can buy TNMM inserts from leading manufacturers:

• Korloy TNMM Inserts

• Kennametal TNMM Inserts

• Widia TNMM Inserts

• Taegutec TNMM Inserts

• Iscar TNMM Inserts

• Mitsubishi TNMM Inserts

• Sandvik TNMM Inserts

🔹 Industries Using TNMM Inserts

• Automotive industry – Engine and transmission components.

• Aerospace industry – Precision turning of alloys.

• Oil & Gas – Machining of pipes and fittings.

• General Manufacturing – Shafts, bearings, fasteners, and more.