Cheap And Discounts BT40 NT40 R8 MT NBH2084 Precision boring tool CNC 0.01 run out Micro tool with boring system NBH2084 boring heads boring bars Wholesale. Buy Directly From Merchant WDCNC Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.