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Unleash the Power of CNC Turning Tool Holders: The Ultimate Guide

In the world of manufacturing, CNC turning is a highly popular machining process utilized for producing a wide range of intricate and precise components. The essence of this method lies in its tool holders - the crucial element that determines the efficiency and longevity of your cutting tools. In this comprehensive guide, we aim to explore the various types of CNC turning tool holders, their advantages, and their impact on your operations. Let's dive in!

The Vital Role of CNC Turning Tool Holders

CNC turning tool holders play a critical role in ensuring stability, precision, and consistency in machining operations. These components attach to the turret of a CNC lathe, securely holding the cutting tool in the optimal position for cutting.

The quality and type of tool holders significantly influence cutting results, tool life, and overall machining performance. Selecting the proper tool holder is necessary for maintaining the accuracy of your cutting process while also optimizing tool life. As a result, understanding the various types of CNC turning tool holders available and their applications is essential for any machinist or workshop.

Types of CNC Turning Tool Holders

1. Turning Tool Holders

Turning tool holders are the most common and widely used variety in CNC lathes. These work with carbide inserts and high-speed steel cutting tools to machine various materials such as steel, aluminum, brass, and plastic. The turning holders come in a range of geometries, which cater to different insert types and cutting angles.

Some typical turning tool holder styles include:

SDJCR/L:Designed for external turning, facing, and profiling operations with 75~ diamond-shaped inserts.

SCLCR/L:Works well for external turning, facing, and profiling operations with 80~ diamond-shaped inserts.

2. Boring Tool Holders

Used for internal turning operations, boring tool holders have a small diameter, enabling them to perform intricate machining tasks within narrow spaces. They are suitable for creating holes and precision bores in materials.

Different boring tool holder styles include:

S-MWLNR/L:Features 95~ trapezoidal inserts, ideal for internal turning, facing, and profiling operations.

S-SVQCR/L:Uses 75~ diamond-shaped inserts, suitable for internal turning, facing, and profiling operations.

3. Grooving and Cut-off Tool Holders

These types of tool holders cater specifically to grooving and parting-off tasks. Their unique design allows for better chip evacuation and cutting forces dispersion, helping extend tool life.

Some popular grooving and cut-off tool holder styles include:

MGIVR/L:For internal grooving tasks with rectangular inserts.

MGEHR/L:Designed for external grooving tasks, compatible with rectangular inserts.

4. Threading Tool Holders

Threading tool holders are designed to create internal or external threads on workpieces. Different threading holders cater to a variety of thread profiles, such as metric, unified, or trapezoidal.

Threading tool holder styles include:


Ideal for external threading with round, laydown inserts.

S-IR:Works with round, laydown inserts for internal threading tasks.

Choosing the Right Tool Holder for Your CNC Lathe

Selecting the appropriate CNC turning tool holder is crucial for achieving optimal results and maximizing your cutting tool's lifespan. When choosing a tool holder, consider the following factors:

1. Compatibility:Ensure the tool holder is compatible with your CNC lathe and the specific cutting tool you intend to use.

2. Tool Overhang:The shorter, the better. A shorter overhang helps reduce vibrations, improving cutting performance and extending tool life.

3. Rigidity:A rigid tool holder supports more aggressive cutting operations and provides longer tool life.

Remember that the type of tool holder directly impacts your machining processes' efficiency, precision, and productivity. Carefully evaluate your requirements and select the appropriate tool holder to harness the full potential of your CNC lathe.

Make the Most of Your CNC Turning Tool Holders

CNC turning tool holders are the unsung heroes in the world of machining, profoundly influencing the final outcomes. Identifying and selecting the right tool holder is a crucial aspect of optimizing any CNC turning operation.

Investing time and resources in understanding the various types of tool holders and their specific benefits will lead to increased productivity, reduced downtime, and optimized cutting tool performance. Take the plunge, explore this diverse realm, and let your CNC turning operations soar to new heights.

cnc turning tool holder name

What is CNC Turning

CNC turning is a process that involves using computer numerical control (CNC) machines to shape and finish various materials, such as metals and plastics, into desired shapes and sizes.
This process is typically used in the manufacturing industry to produce precision parts and components for a wide range of applications, including automotive, automation, aerospace, medical, machinery, and industrial.

CNC Turning service

Asianstar Professional CNC Turning Service

Asianstar CNC turning Service offers precision machining for a wide range of materials, including metals, plastics, and composites. With high level facilities and skillful operators, we can produce high-quality parts with tight tolerances and intricate designs.

Our CNC turning capabilities allow us to produce parts with diameters ranging from 0.5 mm to 480mm and lengths up to 450mm. We offer both single and multi-axis turning, as well as live tooling options for added complexity and accuracy.

We use proven processes and quality control measures to ensure that every part we produce meets our clients' specifications and expectations.

Whether you need a single prototype or high-volume production runs, our CNC turning service can provide the precision and reliability you need to get your project completed on time and on budget.

CNC Turning service

Components Sizes of Asianstar CNC Turning Service

Unit (mm) Min Max
Out Diameter 0.5 480
Inner Diameter (Hole) 0.3 465
Length 1.0 450
Groove Diameter 0.4 above
Thread M1.2 above

Components Tolerance of Asianstar CNC Turning Service

Unit (mm) Tolerance according to sizes
Height Tolerance Diameter Size 0.5 to 3 3 to 6 6 to 30 30 to 120 120 to300 300 to480
Tolerance ±0.003 ±0.010 ±0.020 ±0.030 ±0.035 ±0.040
Length Tolerance Length Size 0.5 to 3 3 to 6 6 to 10 10 to 20 20 to 30 30 above
Tolerance ±0.010 ±0.020 ±0.250 ±0.250 ±0.030 ±0.035

Components shape and position tolerance of Asianstar CNC Turning Service

Tolerance Class followed Tolerance (mm)
Straightness and Flatness Verticality Symmetry
10 10 to 30 30 to 100 100 to 300 300 to 1000 1000 to 3000 to 100 100 to 300 300 to 1000 1000 to 3000 to 100 100 to 300 300 to 1000 1000 to 3000
H ±0.015 ±0.02 ±0.03 ±0.05 ±0.10 ±0.15 ±0.02 ±0.025 ±0.03 ±0.035 ±0.02 ±0.03 ±0.04 ±0.05

Capability of Asianstar CNC Turning Service

Type of Turning Machine Diameter Size (mm) Length Size (mm) Productivity (PCS/Month)
Auto Turning Machine Simple Turning Machine Multi Turning Machine Pin Turning Machine Min 0.5 Max 480 Min 1.0 Max 450 200’000/Item


Multiple Machining Processes

Multiple Machining Processes

Asianstar has various machining processes to support different types of components from client, we can choose the best suitable manufacturing solution to carry result in perfect performance and cheap cost

Flexible Custom Service

Flexible Custom Service

With skillful machining technologies, Asianstar is flexible to support clients on different materials and different structures of the components, we also flexible on the components quantities and even assembly

Create Designing for Clients

Create Designing for Clients

Not only producing according to clients drawings, Asianstar also propose the better designing to clients, supporting clients to buildup improved designing or even new generation components

Standard Procedures

Standard Procedures

Asianstar production, as experienced by many years, is strictly following internal Standard Operating Procedures, to make sure the production schedule is smooth and plans are well carried out well without accidents

Standard Procedures

Standard Procedures

Asianstar strictly controlling product quality by system. We start QC controlling from production plan once setting up, to production process by monitoring QC checking and until the final Inspection before packing

Fast Lead-Time Delivery

Fast Lead-Time Delivery

Asianstar strictly control the production processes, teams keep the plan moving ahead according to the procedures, we have internal time management schedule which mostly bring earlier lead-time of delivery

Asianstar: Professional CNC Machining Supplier

From year of 2005, Asianstar Company establish the CNC Machining Factory in Guangdong Province, China.
We mostly provide CNC Turning, Milling, Drilling, Grinding, and Multi Machining processes service on various materials.
With the Belief of becoming a key supplier in the supply-chain of Precision Components, we strictly control our product quality, keep high precision on our components production, buildup the whole-process QC System and submit the satisfaction for every order.
By long term development, we have buildup partnership with world-wide clients, supporting our partners in Designing, Optimizing, Producing and Testing on each type of components.


CNC Turning Service

CNC Turning Service

Our CNC Turning Service provides different sizes of roll shape work-pieces, the diameter range is from 0.5mm to 480mm, reaching tolerance +/-0.003mm.

CNC Milling Service

CNC Milling Service

Our milling machines and CNC centers are able to produce complicated structure part, five-axis devices produce multi-sides at one-time jag which bring high precision result

Sheet Metal Fabrication

Sheet Metal Fabrication

Our Sheet Metal Fabrication provides slicing, punching, bending, welding, painting and assembling for set products, unique tooling for each project to raise production efficiency

Aluminum Extrusion

Aluminum Extrusion

Our Aluminum Extrusion brings clients various shapes of aluminum parts, high efficiency for mass quantity, our precision extrusion mold control tolerance within 0.01mm

Forging Service

Forging Service

For some steel serious products, we apply Forging Service to make out their outer shape and them use CNC devices to start drilling, forming, rolling, cutting, etc.

Finishing Service

Finishing Service

Our Surface Finishing Service uses chemical or electro post-treatments after machining tasks are finished, normally includes Oxide, Anodizing, Passivation, E-Plating, Painting,etc.


  • Q1.Do you support ODM/OEM?

    Yes, we support ODM/OEM, we provide custom-made service for clients or even support clients on designing or improving

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