Model: ER25. 9Pcs/12PCS/10Pcs/ ER16 Spring Collet Set For CNC Milling Lathe Machine. 12Pcs ER20 Spring Collet 1/8"-1/2" For CNC Milling Lathe Tool Workholding. 15Pcs ER11 Spring Collet 1/16"-3/4"For CNC Milling Lathe Tool Engraving Machine .
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