Cheap And Discounts CNC Grooving Parting CutOff Carbide Inserts, 10Pcs SP300 NC3020 GTN3, 3mm Width, High Durability, YBC251 Material Wholesale. Buy Directly From Merchant Tool Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.