Cheap And Discounts ER11 8mm collet chuck er11 collet set ER spring collet ER11 0.5mm 0.8mm 1.2mm 1.6mm 4mm 6mm 1mm 2mm 3.175 ER spring collet chuck Wholesale. Buy Directly From Merchant Geevesc Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.