Thread Turning Inserts

Introduction of Thread Turning Inserts

 

Thread turning inserts are critical tools in CNC machining for producing precise and reliable internal and external threads. Choosing the right threading insert ensures consistent accuracy, excellent surface finish, and longer tool life—key factors for manufacturers in industries such as automotive, aerospace, oil & gas, and general engineering.
At Great CNC Machine, our carbide thread turning inserts are engineered to deliver high precision and durability across a wide range of materials, including steel, stainless steel, cast iron, and non-ferrous metals. Designed to fit seamlessly with CNC lathes and compatible with major brand tool holders, our inserts provide a cost-effective alternative without compromising quality.
Whether you need partial profile inserts for flexible threading applications or full profile inserts for dedicated thread standards, we offer a complete solution to meet your production needs. With optimized coatings and cutting geometries, our threading inserts ensure reduced cycle times, lower production costs, and improved threading performance.

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Technical Specifications of Thread Turning Inserts
Our thread turning inserts are manufactured with advanced powder metallurgy and precision grinding technology, ensuring consistent performance in CNC threading applications. Below are the comprehensive specifications to help you select the right insert for your production needs.

1. Materials & Grades
We provide a variety of material grades to suit different cutting conditions and workpiece materials:
Carbide (Submicron & Ultra-fine Grain): excellent wear resistance and toughness. Ensures longer tool life under both continuous and interrupted cutting.
Cermet: delivers a superior surface finish in continuous finishing operations. Lower friction and heat generation
Coated Grades:
TiN (Titanium Nitride): Balanced hardness and toughness, versatile use
TiAlN (Titanium Aluminum Nitride): Higher temperature resistance, excellent for dry machining
AlTiN: Superior oxidation resistance, ideal for high-speed cutting
Multi-layer Coatings: Extended tool life and improved cutting stability
Uncoated Grades: Best for non-ferrous materials like aluminum, copper, and plastics

2. Threading Profiles
Partial Profile Inserts: One insert covers a wide range of thread pitches. Cost-effective and flexible for different thread types. Recommended for manufacturers producing various thread standards in smaller batches
Full Profile Inserts: Designed for specific thread pitches and standards. Provides the most accurate thread form and superior surface finish. Ideal for high-volume production where precision and consistency are critical.

3. Supported Thread Standards
Our inserts can produce both internal and external threads across multiple international standards:
Metric (ISO) – General engineering and mechanical parts
Unified (UN/UNC/UNF) – Fasteners and automotive industry
Whitworth (BSP, BSF) – Plumbing and pipe fittings
ACME / Trapezoidal – Power transmission, heavy machinery
NPT (National Pipe Thread) – Oil & gas, pipe threading applications
Custom Standards – Tailor-made inserts available based on customer drawings or specifications

4. Sizes & Codes (Common Models)
16ER / 16IR – Widely used for small to medium thread diameters
22ER / 22IR – Suitable for medium to large diameters
27ER / 27IR – Heavy-duty threading applications
Other sizes – Available upon request (OEM/ODM service provided)

One-Stop Threading & Tooling Solution

At Great CNC Machine, we don’t just supply thread turning inserts — we provide a complete one-stop solution for your cutting tool needs. From turning inserts, milling cutters, and drilling tools to tool holders, collets, and accessories, we cover the full range of CNC tooling required for efficient and precise machining.
By choosing us as your partner, you gain:
✔ Full product coverage – external & internal threading inserts, full/partial profiles, compatible holders, and custom solutions.
✔ Seamless compatibility – all inserts fit major CNC systems and tool holders, eliminating sourcing headaches.
✔ Simplified procurement – one trusted supplier for all your tooling needs, reducing supplier management costs.
✔ Stable supply chain – large inventory, fast delivery, and global export support.
✔ Customization services – OEM/ODM packaging and tailored solutions for distributors.
Whether you are a distributor looking for a reliable product line or a manufacturer seeking consistent performance across multiple machining operations, our one-stop solution saves you time, cost, and effort, while ensuring high-quality results every time.

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Success Story: Precision Threading for Oil & Gas Pipe Couplings

Tool Used: Thread Turning Insert Series
Insert Grade: YS3225 Coated Carbide
Insert Specification: 16ER AG60 ISO
Workpiece Material: Alloy Steel (42CrMo, quenched and tempered)
Cutting Speed: 820 RPM (95 m/min)
Feed Rate: 0.15 mm/rev
Cutting Depth: ap = 0.3–0.5 mm
Cutting Method: External Thread Turning
Coolant: Emulsion
Cutting Results:
Achieved smooth, accurate API threads for oil & gas couplings.
Tool life reached 380 pcs, compared with 320 pcs from a well-known competitor's insert.
Surface finish Ra 1.6 was achieved consistently, meeting the customer’s quality requirements.
The customer reported a 15% reduction in tool change downtime, improving overall productivity.

Applications of Thread Turning Inserts

 

 

Automotive Industry

Threading engine parts, transmission shafts, axles, nuts, and bolts.
Handles hardened steels and alloy materials used in cars and trucks.
Guarantees tight tolerances to meet automotive safety standards.

Oil & Gas Industry

For pipes, drill strings, couplings, valves, and high-strength connectors.
Capable of cutting large, deep, and precise threads.
Withstands harsh environments with advanced coatings against heat and wear.

Aerospace Industry

Threading titanium bolts, fasteners, hydraulic components, and landing gear parts.
Designed for difficult-to-machine alloys like Inconel, titanium, and nickel-based materials.
Provides mirror-like surface finishes required in aerospace.

General Engineering & Machinery

Used in machine tool parts, industrial pumps, hydraulic cylinders, and gear housings.
Fits CNC lathes, turning centers, and multi-axis machines.
Available for both small workshops and large-scale factories.

Pipe Fittings & Plumbing

Threading BSP, NPT, and metric pipe threads.
Ensures tight sealing performance for plumbing and gas fitting systems.
Works on stainless steel, brass, and copper pipes.

Heavy Equipment & Construction

Threading for bolts, bushings, and structural fasteners used in construction machinery.
Inserts optimized for high-strength steels and large-diameter threads.

Energy & Power Generation

Applied in turbine components, generator shafts, nuclear plant parts.
Designed to handle heat-resistant alloys.

Medical Equipment & Devices

Threading surgical tools, orthopedic implants, and precision medical fasteners.
Requires micro threading inserts for small parts.

Great Magtech (Xiamen) Electric Co., Ltd is one of the most professional thread turning inserts manufacturers and suppliers in China. If you're going to buy high quality thread turning inserts, welcome to get more information from our factory. Good service and competitive price are available.