DIN6388B EOC Collets

Material: 65Mn

Accuracy: 0.015mm

Hardness: HRC44-48

Type: EOC16B EOC20B EOC25B EOC32B EOC40B EOC50B

Mini order quantity: 10pcs

Package: Paper box

Brand: HT-TOOLS

0.5mm Max clamping range: 0.5mm

DIN6388B EOC Collets

DIN6388B EOC Collets


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Model No.DD1dLL1L2L3
EOC16B22.6525.52-16405.51.29.5
E0C20B27.429.82-204561.3510
E0C25B32 935.052-255261.410
E0C32B41.343.74-326061.4511
EOC40B49.752.26-406861.4512
EOC50B61.163.88-508071.5513
Max clamping range:0.5mm




DLRun out tolerance
1.0-1.660.0100.015
> 1.6-3.010
> 3.0-7.016
> 7.0-10.025
> 10.0-18.0400.0150.020
> 18.0-24.050
> 24.0-30.060
> 30.0-50.0800.0200.030
  • Sealing structure
    Type A EOC collet has no coolant sealing groove, only fits standard external cooling tools, and cannot prevent cutting fluid leakage during internal coolant machining.
    Type B EOC collet is equipped with an integrated sealing ring groove at the rear end, supporting through-tool internal coolant supply; it blocks coolant leakage for deep-hole drilling and high-efficiency milling.
  • Applicable processing scenarios
    Type A is for general light-duty milling, ordinary drilling and tapping with external coolant.
    Type B is designed for heavy cutting, deep hole machining, and all tools with central cooling holes.
  • Universal compatibility
    Both A and B share the same outer taper dimension and fit the identical EOC/OZ tool holder; only the rear sealing part differs.


Sales manager: Daria

Whatsapp/Wechat: +8615288891051

Email:ben@ht-tools.net

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Contact Us

Contact Us

Tel: +86 534 425 1888

Mob/WhatsApp/Wechat: +86 137 9138 1619

E-mail: jacksun@ht-tools.net

Add.:East Area of Economic Development Area, Pingyuan County, Shandong Province. China 253100

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