G12515.0X6.8 Counterbore - 180°

Counterbore with 3-flutes, diameter 15.00mm with an overall length of 100mm and a flute length of 22mm and 12.5mm straight shank, according to DIN 373 standard to produce a counterbore with the aid of a non-drilling pilot with a diameter of 6.80mm for a pre-hole tapping diameter M8, HSS with standard bright finish for machining free machining and plain carbon steel, wrought and copper or copper alloys