Cheap And Discounts Diamond Insert PCD CBN CNC Lathe Turning Tool TCGT16T302 TCGT16T304 TCGT16T308 PCD CBN for Hard Steel Wholesale. Buy Directly From Merchant Red Metal Fittings Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.