1.We are factory 2.Size:6,8,12mm and 1/4,1/2" 3.Material:45#,YG8 ... Ball Bit, etc... These bits can form edges, mill stock for joints, add decorative veining or inlays and even makeraised panel ... and shank are availableDifferent packing are available 2.Size Shank for 6,8,12mm and 1/4",1/2" 3.Router Bit ... products. 5.Company Picture 6.Certificate Tungten Carbide Router Bit For Engrave(Corner Rounding Bit)