R5145/64 R51 Taper Length Drill

Long series drill with straight shank, diameter 0.7031" (45/64) with an overall length of 9.1/2" and flute length of 5.5/8" according to ANSI standard with 118° point angle, HSS with steam tempered finish for 6xD drilling without pecking in steel, cast iron and non-ferrous material