The G125 counterbore from Dormer has a 180 degree angle, designed to create holes for standard sockets and cap head screws. The G125 has a solid pilot which helps to accurately guide the counterbore in standard metric sized holes, and a bright finish which gives a cleaner more accurate finish to the hole by preventing workpiece material from sticking to the cutting edges of the tool. Made from premium High Speed Steel, the G125 can be used to chamfer holes in steels, stainless steels, aluminium and many other materials. Designed for use in both CNC and conventional machines, G125 counterbores are very versatile tools.