50Pcs Dental Diamond Burs FG 1.6mm Fit High Speed Handpiece SF/SR series SF41/SF31/SF21/SF15/SF11/SR31/SR12/SR12 WholesaleBuy Directly From Xceldent Official Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.