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Article no.: 309621

ER clamping nut Internal

Standard DIN 6499 D

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on request
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Thread and taper ground in a single setup for highest concentricity.
Internal clamping nut with an external thread.

Suitable for:

ER collet chucks with internal thread.

Optional extras:

ER clamping wrench, No. 309680 − 309740.
Single open ended spanner (for size 16), No. 613300 size 25.
Sealing rings No. 309625; 309630; 309635; 309645.


Collet chuck and clamping nut are balanced separately!

Technical Data

DIN 6499 D
Type of product
Collet chuck accessories

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