CNC Tools > Threading Inserts

Threading Inserts

Threading Inserts – Precision for Every Threading Operation

Threading inserts are essential carbide cutting tools designed to create accurate and consistent internal and external threads in various materials, from steel and stainless steel to non-ferrous metals. At CNC Tools Depot, the world’s largest marketplace for carbide inserts, we bring you an extensive collection of threading inserts from leading brands like Korloy, Widia, Kennametal, Taegutec, Iscar, Sandvik, and more.

Whether you need ISO metric threads, UNC/UNF, ACME, Trapezoidal, or Pipe threads (NPT, BSPT, BSPP), we have the perfect insert to ensure high precision, surface finish, and long tool life.

🔹 Types of Threading Inserts

1. Internal Threading Inserts

Designed to cut threads inside a pre-drilled hole. Ideal for producing precise female threads across a wide range of diameters.

2. External Threading Inserts

Used for machining threads on external cylindrical surfaces. Common in shafts, bolts, and fasteners.

3. Partial Profile Inserts

Suitable for threading different pitches with the same insert. Cost-effective and versatile, but requires multiple passes.

4. Full Profile Inserts

Dedicated inserts for specific pitches. Provide excellent thread finish, accurate crest radius, and reduced cycle time.

5. Multi-tooth Threading Inserts

Designed with multiple cutting points to cut several thread pitches in one pass. Improves productivity in high-volume threading operations.

6. Laydown Threading Inserts

The most widely used threading style; interchangeable and easy to clamp on holders, offering stability and precision.

7. Top-notch Threading Inserts

Compact inserts that clamp perpendicularly into holders. Great for small components and tight spaces.

🔹 Applications of Threading Inserts

  • Automotive components (engine bolts, shafts, studs)

  • Aerospace threaded parts (fasteners, landing gear parts)

  • Oil & Gas (pipe threads – NPT, BSP, API threads)

  • General machining (screws, nuts, tool holders)

  • Medical implants (threaded bone screws, orthopedic devices)

  • Heavy engineering & machinery

🔹 Benefits of Using High-Quality Threading Inserts

✔️ Precision threading with consistent accuracy
✔️ Longer tool life with advanced carbide coatings (TiN, TiCN, AlTiN)
✔️ High surface finish reducing post-processing
✔️ Increased productivity with faster cycle times
✔️ Compatibility with multiple materials & thread standards

🔹 Why Buy Threading Inserts from CNC Tools Depot?

  • World’s largest selection – all leading brands in one place

  • Genuine products directly sourced from trusted manufacturers

  • Competitive pricing with wholesale & bulk options

  • Expert guidance for selecting the right insert for your job

  • Fast global shipping with reliable customer support

Frequently Asked Questions

Threading inserts are used in CNC lathes and turning centers to machine precise threads (internal and external) on components.

Full profile inserts cut the entire thread form including crest radius, while partial profile inserts can cut multiple pitches but don’t finish the crest.

Yes. Inserts are available for both ISO metric and UNC/UNF (imperial) threads.

They can cut steel, stainless steel, cast iron, aluminum, titanium, and high-temp alloys depending on grade and coating.

Brands like Korloy, Kennametal, Widia, Sandvik, Taegutec, and Iscar are widely used worldwide.

No. Internal inserts are specifically designed for inside threading, while external inserts are for external diameters.

Selection depends on thread type (metric, UNC, ACME, pipe threads), pitch, material, and whether you need full or partial profile inserts.

Generally, no. Inserts and holders are sold separately but designed to match specific geometries.

Common coatings include TiN, TiCN, AlTiN, and multi-layer PVD/CVD coatings for wear resistance and heat resistance.

Tool life depends on cutting parameters, material, and coating, but carbide threading inserts are designed for extended durability compared to HSS tools.

India's Largest Marketplace for Carbide Inserts & Cutting Tools.

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