The high-speed steel jobber-length drill bits in these sets provide more flexibility and absorb more shock and vibration than cobalt and carbide jobber-length drill bits, making them suitable for use in manual drilling machines and handheld power tools. - They may leave a rough finish on the hole. These sets contain multiple drill bits of various sizes. Drill Bit Point Angle / 135 Degrees Cutting Direction / Right Hand Drill Bit Grouping / Individual Includes / Metal Drill Index Drill Bit Size / #60-#1