Cheap And Discounts 1PCS ER11 spring collet 1 2 3 4 5 6 7 8 1/8 1/4mm high precision chuck kit for CNC engraving machine and milling Wholesale. Buy Directly From Merchant LYYZ Official Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.