These sets contain several jobber-length drill bits in various sizes. They ensure that users have access to a range of bits for maintenance and repair tasks. stretch Jober-length drill bits are the most often used drill-bit length. They come up with a good balance of power and perfection and can be used in a wide range of drilling claims. The high-speed steel jobber-length drill bits in these sets provide greater pliability and absorb more shock and shaking than cobalt and carbide jobber-length drill bits, building them perfect for use in manual drilling machines and handheld ability tools. These sets contain several drill bits of various sizes.