With a 135 degree split point to help with self-centering and reduce the force required to drill the hole, R41C screw machine length drills are manufactured to NAS907 type C standard and made from High Speed steel, so can be used for drilling many materials including steel, stainless steel and aluminum. They are available in wire gauge sizes from 60 to 1 and come with a steam oxide finish to prevent workpiece material from sticking to the cutting surfaces of the tool for accurate holes. Suitable for many different machine and hand held applications, R41C drills are a great choice.