ITEM NAME:1 Piece Precision 0.002 High Speed Tool Holder ISO25 ER20 Chuck Chuck Balan F3W3 1 Piece Precision 0.002 High Speed Tool Holder ISO25 ER20 Chuck Chuck Balan F3W3 ER20 collet clamping range:1mm-13mm suitable for engraving machine Material:metal colour:Silver Package Contents: 1 * ISO25 ER20 chuck