1pcs ER20 1-13MM 6.35 3.175 1/2 12.7 1 2 3 4 5 6 7 8 9 10 11 12 13 Spring Collet Set For CNC Engraving Machine Lathe Mill Tool

1pcs ER20 1-13MM 6.35 3.175 1/2 12.7 1 2 3 4 5 6 7 8 9 10 11 12 13 Spring Collet Set For CNC Engraving Machine Lathe Mill Tool

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