XJL High-precision ER8 collet chuck milling cutter ER elastic chuck precision 0.005 CNC engraving machine tool holder cylinder clamp

Quality: high precision (AA grade)Material: 65Mn spring steelAccuracy≤0.008-0.01Scope of application: Applied to CNC tools such as ER tool holders, ER extension rods, etc., which can clamp CNC tools such as milling cutters and thread tapsQuality: Premium (AAA grade)Material: 65Mn manganese steelAccuracy: ≤0.008 (full inspection factory)Scope of application: Applied to CNC tools such as ER tool holders, ER extension rods, etc., which can clamp CNC tools such as milling cutters and thread tapsQuality: UP (AAAAA grade)Material: 65Mn manganese steelAccuracy: ≤0.005 (full inspection factory)Scope of application: Applied to CNC tools such as ER tool holders, ER extension rods, etc., which can clamp CNC tools such as milling cutters and thread taps