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    ER25 3/16" Spring Collet, 65Mn Spring Steel Precision Router Collet for CNC, Milling, Engraving & Lathe Tool Holding

    • SizeER25 Spring Collet, Clamping Diameter: 3/16", Outer Diameter: 1.02"(26mm), Total Height: 1.34"(34mm)
    • Premium Material & DurabilityCrafted from high-grade 65Mn spring steel with a hardness of HRC84, this collet offers exceptional wear resistance, corrosion resistance, and long-term durability for demanding workshop environments.
    • High Precision & Stable ClampingEngineered for high precision with an accuracy of 0.008mm (0.0032"), it ensures precise and stable workpiece positioning, minimizing tool runout for superior machining results.
    • Wide CompatibilityIdeal for use in CNC machining centers, general milling machines, engraving machines, lathes, router tables, and various spindle-based tool systems. Perfect for milling, drilling, tapping, and engraving applications.
    • Package ContentsPackage Includes: 1 x ER25 Spring Collet. Please verify the specifications to ensure compatibility with your tool and machine before ordering.
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    1

    Precision Clamping Performance for CNC & Router Applications

    Engineered for accuracy and stability, this 65Mn spring steel ER collet delivers superior gripping force for high-speed machining. Designed for CNC router collet systems, milling machines, engraving tools, and lathe tool holding, it ensures minimal runout and precise concentricity.

    The hardened spring structure provides consistent clamping pressure, making it ideal for precision CNC machining, metal cutting, wood routing, and engraving applications. Whether you're working with aluminum, steel, or plastic, this ER20 / ER25 / ER32 collet offers a secure and vibration-resistant hold.

    2

    Durable 65Mn Spring Steel–Built for Heavy-Duty Use

    Crafted from premium 65Mn spring steel collet material, this collet features excellent elasticity, wear resistance, and long service life. The heat-treated construction enhances toughness, allowing repeated clamping without deformation.

    Its corrosion-resistant surface and robust design make it suitable for high-speed CNC operations, industrial machining environments, and continuous production workflows. The collet maintains performance even under high load, making it a reliable choice for professionals.

    3

    Easy Installation & Wide Compatibility Across Machines

    Designed for user convenience, this ER collet system allows quick installation and removal with standard collet nuts. Compatible with a wide range of CNC spindles, routers, milling machines, and lathe chucks, it supports multiple sizes including ER11, ER16, ER20, ER25, ER32, ER40.

    Perfect for professionals and DIY machinists, this precision router collet ensures efficient tool changes and stable operation across various machining tasks.

    1

    Precision Clamping Performance for CNC & Router Applications

    Engineered for accuracy and stability, this 65Mn spring steel ER collet delivers superior gripping force for high-speed machining. Designed for CNC router collet systems, milling machines, engraving tools, and lathe tool holding, it ensures minimal runout and precise concentricity.

    The hardened spring structure provides consistent clamping pressure, making it ideal for precision CNC machining, metal cutting, wood routing, and engraving applications. Whether you're working with aluminum, steel, or plastic, this ER20 / ER25 / ER32 collet offers a secure and vibration-resistant hold.

    2

    Durable 65Mn Spring Steel–Built for Heavy-Duty Use

    Crafted from premium 65Mn spring steel collet material, this collet features excellent elasticity, wear resistance, and long service life. The heat-treated construction enhances toughness, allowing repeated clamping without deformation.

    Its corrosion-resistant surface and robust design make it suitable for high-speed CNC operations, industrial machining environments, and continuous production workflows. The collet maintains performance even under high load, making it a reliable choice for professionals.

    3

    Easy Installation & Wide Compatibility Across Machines

    Designed for user convenience, this ER collet system allows quick installation and removal with standard collet nuts. Compatible with a wide range of CNC spindles, routers, milling machines, and lathe chucks, it supports multiple sizes including ER11, ER16, ER20, ER25, ER32, ER40.

    Perfect for professionals and DIY machinists, this precision router collet ensures efficient tool changes and stable operation across various machining tasks.

    Product information

    Brand Sunkoo
    Material Spring Steel
    Item Diameter 0.19 inches
    Compatible Devices Drilling Machine, Lathe, Milling Machine
    Capacity 0.19 inches
    Brand Name Sunkoo
    Included Components Bag
    Manufacturer Sunkoo
    Unit Count 1 Count
    Model Number ER25 3/16"
    Manufacturer Part Number 30THJSunkoo2601
    Handle Type hand-tightened
    Lock Type Combination
    Material Type Spring Steel

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