Detailed Product Description des:21pcs drill setsize: (1/16-3/8)*1/64inchpacking:steel box standard:ANSIsurface:tin-coated,black oxide,bright.TypeSizemanfacturtingMaterialPoint anglestandardSurfaceHSS drill1-131/16-1/2fully ground,roll forge,edge groundM35,M2,W9,4341,4241118/135 split pointDIN338,340,1897black oxide,bright,taitinum,amber