Dormer 5970145 | 9.00mm Drill Size x 15.00mm Shank x 56.00mm Flute Length x 111.00mm OAL x 118 Degree Point Angle Steam Tempered Coated HSS A413 Step Drill Bit

Step drill with 180 Degree included step angle, straight shank and a drilling-pilot diameter of 9.00mm with a length of 19.00mm, a large diameter of 15.00mm and an overall length of 111mm, according to Dormer standard to produce a medium fit through hole and flat bottom seat for M8 socket-head cap screws, HSS and steam tempered finish for machining free machining, plain carbon and alloy steel, ferritic and martensitic stainless steel and grey cast-iron.