NEW 1Set ER11 ER16 ER20 ER25 ER Spring Collet Chuck 0.015/0.008Mm for CNC Milling Tool Holder Engraving Machine Lathe. ER16(10PCS) ER11(8PCS) ER20(13PCS) ER25(15PCS) model ER11 ER16 ER20 ER25 ER32 ER40 Collet.
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