1 x Square 2.2KW Air Cooled Spindle Motor ER20 ( 220V,24000rpm,4 bearings,400Hz,6A,Runout-off<=0.01mm). 2.2 KW ER20 Square Air-cooled Spindle motor Engraving milling Grind. Collet size: ER20. ER20 Collet and Nut.
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