Description
Subland drill with 90° included step angle, straight shank and a drilling-pilot diameter of 4.30mm with a length of 11.00mm, a large diameter of 8.00mm and an overall length of 117mm, according to DIN 8374 standard to produce a close fit through hole and conical seat for M4 countersunk-head screws, HSS and steam tempered finish for machining free machining, plain carbon and alloy steel and grey cast-iron
