... 1. We have series tool holder cnc,such as BT,NT,SK,SLN ,FMB,Taper shank tool holder machine tool accessories and so on.2 ... . The precision can reach from 0.003 to 0.005mm3. Holder hardness: ... Applied for mill,Machining center ,engrarving ,milling machine ,and can clamp any straight cutters and tools CNC TOOL HOLDER High precision Milling chuck BT/ER ...