... of HSS twist drill bits,the details include:1. Standard: DIN338,DIN1897,DIN340,ANSI B94.11M,DIN3452. Material: HSS4241,HSS4341,HSS9341 ... shank,rainbow etc.6. Shank: Straight shank drills, Taper shank drills, 1/2 shank drills,Wood working drill bits, Flat wood boring bitApplication ... metal4.non-ferrous metals5. wood and so on m35 hss drills