Confezione da 2 pinze ER20 a molla mandrino 5/16" per macchina incisione CNC tornio fresatura

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: 5/16-inchMaterial: 40Cr SteelPrecision: 0.015mm / 0.0006-inchTotal Height: 31.5mm / 1.24-inchOuter Diameter(Max): 21mm / 0.83-inchPackage Includes: 2pcs x Spring Collet.

eBay