ER20 Spring Collet, 1/4" Chuck for CNC Engraving Machine Lathe Milling 2pcs

This ER collet is used for CNC milling lathe tools and work holding engraving machines.Collet must be placed into collet chuck nut before inserting into collet chuck.Specifications:Model: ER20Clamping Diameter: 1/4-inchMaterial: 40Cr SteelPrecision: 0.03mmTotal Height: 31.5mm / 1.24-inchOuter Diameter(Max): 21mm / 0.83-inchPackage Includes: 2pcs x Spring Collet.

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