ER11 ER20 ER32 ER40 Collet Clamping Nut for CNC Milling Chuck Holder Lathe Tool

Sizes: ER11、ER16、ER20、ER25、ER32、ER40. - Eccentric retainer for collet auto-release. 1 x Clamping Nut. - Suitable for ER type tool handle, tool bar, extension bar nut holding drill bit, boring cutter and other tools.

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