Cheap And Discounts Coarse Emery Grinding Burr Grit #40 4pcs Grinding Bits Shank 4x6x80mm Ultra-long Diamond Abrasive Bits Peeling Trimming Bits Wholesale. Buy Directly From Merchant Reilyn Toools Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.