Cheap And Discounts BRSCHNITT 2pcs Adapter 5/8"-11 Male Thread to 3/8 Hexagon Shank 5/8"-11 thread Core Bit Can be fitted on Hand Drill Wholesale. Buy Directly From Merchant BRSCHNITT Diamond Tool Official Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.