R18 jobber drills have a strong 118 degree conventional point which is easy to re-grind giving great economy The drills are manufactured from premium High Speed steel (HSS) for drilling a wide range of materials including steel, stainless steel and aluminum, and a steam oxide finish to prevent workpiece material from sticking to the cutting edges of the drill for clean and accurate holes. R18 jobber drills can be used in many different hand held and machine applications, and come in wire gauge sizes from 80 to 1.