DORMER HSCo machine tap for metric thread, uncoated, DIN 371 B shaped spiral point 2.5xD M20X2.5

HSS-E machine tap for metric thread DIN 371/376 form B bright finish spiral point for 2.5xD through holes in steel <1200 N/mm², copper, brass and bronze <200 HB, aluminum and aluminum-magnesium alloys