• CNC Router Bits
  • CNC Router Bits
  • CNC Router Bits
  • CNC Router Bits
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CNC Router Bits

  • KEN
  • Made in Tianjin, China
  • 2-3days
  • 30 pcs month
  • EOC25
  • 1/2 (12.7)mm
1、Firmly Hold 2、Securely Grip 3、Tightly Clamp 4、Strongly Hold

Product Advantages and Features


1.High-precision clamping

Micron-level concentricity: Thanks to uniform elastic deformation, the workpiece achieves concentricity within 0.01 mm relative to the spindle after clamping, making it ideal for precision machining.


2.Excellent dynamic balance

No noticeable eccentricity during rotation, minimizing.


3.Fast clamping, maximum efficiency

Tool change in seconds; no recalibration required—repeat positioning accuracy remains stable, eliminating tool-setting time.


4.Uniform clamping force protects the workpiece.

Elastic encapsulation: 360° uniform wrap eliminates point-contact indentations common with traditional three-jaw chucks.


5.Durability and cost-effectiveness

Long service life: high-grade spring steel, after heat treatment, endures millions of clamping cycles.

Low maintenance cost: only the inexpensive collet needs periodic replacement, while the body remains reusable for years.


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Product Technical Parameters


Elastic chuck Parameter

Clamping Diameter Range

12.7mm

Repeat Clamping Accuracy

±0.003–0.005 mm

Radial Run-out

≤0.01 mm (dynamic)1–2 μm (static)

Axial Clamping Force

≥2 000 N

Dynamic Balance Grade

G1 (≤30 000 rpm)G2.5 (≤15 000 rpm)


Product Application Scope



Machine tool types compatible with spring collets.

Spring collets are suitable for all types of machine tools: CNC lathes, machining centers, engraving machines, and more.


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Product Description


AdvantageQuick changeover for higher efficiencyMachining Center Toolholder Collets
AccuracyRepeatability Accuracy±0.003–0.005 mm
Product DimensionsBore Size12.7mm


Elastic chuck is a precision clamping device that utilizes the elastic deformation of metal to grip the workpiece; it is widely used on lathes, grinders, machining centers, and other machine tools.


Company Introduction


Haopai Co., Ltd. was established in 2008 and is a comprehensive service enterprise specializing in machinery and accessories for the home industry. We have a specialized and innovative customer center, component assembly workshop, equipment debugging workshop, processing workshop, and warehousing. Our main business includes sales of mechanical parts, equipment upgrades and renovations, equipment maintenance and relocation, customized non-standard equipment, intelligent production line planning, automation support, machine vision, shared cloud warehouses, etc. We provide customers with professional personalized services. After more than ten years of accumulation and development, our elite service team of nearly 200 people has served over 10000 enterprises nationwide. Over the years, we have accumulated more than 200000 non-standard accessory categories, making us the most comprehensive one-stop procurement platform in the industry. We have the most competitive technical renovation team in China, with a total of over 100000 equipment upgrade and renovation projects. Haopai Co., Ltd. has been committed to the great cause of making global machinery and preferred Chinese parts for many years, and is determined to become the preferred brand for comprehensive services of global machinery and parts.


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Deeply Cultivating the Industry for More Than Ten Years, Creating an Intelligent Manufacturing Full Chain System for Woodworking Machinery.

After 16 years of industry accumulation, we have always focused on the research and manufacturing of CNC woodworking machinery. We have established a leading full chain production system and specialized team structure, providing one-stop services from research and development to delivery for global customers. It is currently a one-stop procurement platform with a complete range of categories in the industry.


Specialized and Innovative Customer Center


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Haopai has been committed to the business philosophy of quality first, integrity-based, and win-win cooperation. We adhere to the business philosophy of ultimate customer experience and efficient operation, and uphold the service spirit of taking non-standard customization, drilling difficulties, and solving difficulties as our own responsibility. We constantly innovate and aspire to become the preferred brand for comprehensive services of global machinery and accessories. We are committed to making the great cause of global machinery and preferred Chinese accessories contribute to the development of national brands and the strength of Haopai people.


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Team Style


Professional team, always on standby

The service team is distributed in pre-sales consulting, order management, technical support, and after-sales service positions, with 7 × 12 hours of online response to ensure that your needs are processed in the first time.

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Haopai Intelligent Cloud Warehouse, Escorting You

In Order to Solve the Problems of High Procurement Costs, Low Efficiency, Difficult Management, Slow Logistics, And High Stagnant Inventory of Industrial Materials in Factories, Haopai Shared Cloud Warehouse Emerged in 2020. Greater Efforts Will Be Made to Assist Customers in Achieving Zero Capital Occupation, Spare Parts Inventory, And Improving Their Digital Level.

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Machining Workshop


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Component Assembly Workshop


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New Media Center


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The Intelligent Dispatching System Established in 2021 Has Achieved Intelligent Personnel Allocation, Real-Time Control of Technical Personnel's Work Status, Mobile Dispatching, Accurate and Effective Arrangement of Various Tasks, Precise Control of Project Costs, Thus Creating a Fast Response, Efficient, And Professional After-Sales Service Team.


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Patent Certificates

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Cooperative Partner


We Have Served over 10000 Enterprises Nationwide and Have Accumulated over 200000 Non-standard Accessory Categories over the Years, Covering Major Home Furnishing Brands Across the Country.


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