Cheap And Discounts 11IR 16ER 16IR 0.5ISO 0.8IS0 0.75ISO 1.0 1.25 1.75 2.0 2.5 3.0 3.5 ISO Threading Inserts for Aluminum Copper Plastic Wholesale. Buy Directly From Merchant Dasan tool Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.