HSS Taper Shank Twist Drill Bits:Our factory supply: end mill,gear hob,machine tap,hobbing cutter,drill,band saw blade ... bi-metal backsaw blade, high speed cutter, spline hobbing cutter, bevel gear shaper cutter, HSS drill bit, screw driver, steel measuring tape, ... tool, thread tap, ball nose, twist drill, HSS tool bits, gear hob,....Product DescriptionStandard: DIN341, DIN345, DIN1870, ANSI ...