... HSS M42,M35,6542(M2),9341,4341,42412.Finish:Tin coated,coffee,bright,rainbow colour,Black oxide,Black flute ... price11.Quality guaranteedWe are a specialized manufacturer of HSS twist drills in China,we are not only ... provide all kinds of twist drills,such as HSS straight shank twist drills,taper shank drill, ... wood working drill,flat wood bit,Hss reduced shank twist drills,hss hex shank twist drills and so ...