Cheap And Discounts TCMT16T304 KT7030 TCMT16T308 KT7030 Carbide turning insert TCMT16T304 CNC Lathe Cutter Turning Tools For High hardness steel Wholesale. Buy Directly From Merchant AK Tool House Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.