Solid carbide rotary burr,rotary file 1)Different shape:SA,SC,SE,SG... 2)Shank dia:3mm,6mm 3)Material:carbide,hss Solid carbide rotary burr,rotary file,hss rotary burr1)Different shape:SA,SC,SE,SG,SK,SM etc.2)Shank dia:3mm,6mm3)Material:carbide,hss4)Cutter:super coarse, coarse, medium, fine, super fine5)Fast miller cut 6)Made by CNC machine