... 8.5, 9, 9.5, 10. HSS straight shank twist drill1.Material:HSS M42,M35,6542(M2),9341 ... only provide all kinds of twist drills,such as HSS straight shank twist drills,taper shank drill,SDS drill ... bits,center drills,step drills,masonry drill,,wood ... wood bit,Hss reduced shank twist drills,hss hex shank twist drills and so on,but also provide ...