Cheap And Discounts a set high quality er11 3.175mm 4mm 5mm 6mm 8mm motor shaft Engraving machine tool holder+7pcs/15pcs collet chuck suit ER series Wholesale. Buy Directly From Merchant 24H Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.