Name: BGTEC 5pcs/box Round Shank Vacuum Brazed Diamond Dry Drilling Bits Quantity: 5pcs/box (6mmx2pcs,8/10/12mmx1pc) Color: Orange Specification: Diameter: 6/6/8/10/12mm Connection: Round shank Shank diameter: 5.5mm(Dia6mm),8mm(Dia8mm),7.5mm(Dia10/12mm) Grit: #50/60 Total length: 65mm Diamond height: 8mm Feature: 2.Wax inside for colling,high efficiency. 3.Wide application in drilling granite,marble,tile,masonry,concrete,ceramic... 4.Vacuum Brazing technology provides longer service life and multifunction. 5.High quality,economical and practical. ----------------THE END----------------
1.Dry or wet drilling.