Description
Jobber length drill with straight shank, diameter 0.4375″ (7/16) with an overall length of 5.1/2″ and flute length of 4.1/16″ according to NAS907 Type J standard with 135° heavy duty split point, cobalt based HSS-E with bronze finish for 4xD drilling without pecking in steel, stainless steel, cast iron and super-alloy
