The Dormer Drill Bit is a sheet metal drill with straight shank. It has diameter of 4.2 mm with an overall length of 55 mm and flute length of 18 mm according to DIN 1897 standard. This drill bit has a 120 degree point angle, HSS with steam tempered finish for 1.5xD drilling without pecking in steel.
Suitable for drilling in many materials Offers better hole finish and more accurate diameter Stops work piece material from sticking to the cutting edge Specially designed for drilling thin materials and sheet metal
