Drill set in standard plastic cassette consisting out of 29 jobber length drills with straight shank, A100 fractional sizes 1/16 up to 1/2″ in increments of 1/64″, according to DIN 338 standard with 118° conical point, HSS with steam tempered finish for 4xD drilling without pecking in steel (above 3/64″ with bright finish).