General Purpose Jobber Length Drills (HI-SPEED DRILL BIT R18 #57)

HI-SPEED DRILL BIT R18 #57|For general purpose drilling under a wide range of operating conditions and in various materials such as cast iron, steel and steel forgings. The steam oxide finish and surface treatment provide abrasion resistance and improved chip flow. Bits have a straight shank made of high-speed steel with a 118° point. They are available in fractional sizes (R10), letter sizes (R15) and a low thrust/split point design (A012 and R15A).