... ×2.0EOC3272M60×2.5EOC4085M68×2.5EOC50100M80×2.5Brief introductionHigh Quality EOC/OZ Clamping Nut for Collet Chuck,Selection of high quality spring ... ,more smooth,feel more comfortable,more beautiful.Mounting instruction for EOC collet and nut1. Put the collet into the nut in ...