Cheap And Discounts 10pcs CNMG120404R-S CNMG120408R-S SK3025 SK4025 rhombus Grooving Rough Carbide CNC lathe turning insert Sharp and wear-resistant Wholesale. Buy Directly From Merchant ND lathe tool Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.