Model: ER8-A, ER8-M, ER11-A, ER11-M, ER16-A, ER16-M, ER20-A, ER20-M, ER25 UM, ER32 UM, ER40 UM (optional). Type: ER collet chuck nut. Application: CNC cutting tools, woodworking machinery, engraving machines.
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