- Set of 13 jobber length drill bits includes inch sizes 1/16″ through 1/4″ in 1/64″ increments
- Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials
- Gold oxide finish lubricates and provides wear resistance on ferrous materials
- Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging
- Extra thick web for increased strength and rigidity compared to standard drill bits.Made in the USA
From the manufacturer
Manufactured from premium materials to exacting standards:
- Cobalt steel increases hot hardness and extends drill wear life
- Gold oxide finish acts as a lubricant and provides wear resistance
- 135-Degree split points are self-centering for reduced thrust and easier penetration
- Produces smaller chips than 118-degree point to reduce clogging
Chicago Latrobe 57851 135-Degree Split Point Jobber Length Drill Bit Set
This Chicago Latrobe 550 Series jobber length drill bit set contains 13 cobalt steel drill bits sized 1/16-inch through 1/4-inch in 1/64-inch increments. Cobalt steel increases hot hardness and provides extended tool life compared to high-speed steel drill bits when drilling hard materials. Gold oxide finish lubricates and provides wear resistance on ferrous materials. Self-centering 135-degree split points penetrate hard material without a pilot hole and produces small chips to reduce clogging. Compared to standard drill bits, these tools have a thicker web for increased strength and rigidity. Jobber length drill bits have a versatile midrange drilling depth for general-purpose applications. The set includes a metal index case for identification and organization.
- Set of 13 jobber length drill bits
- Set Size Range: 1/16-inch through 1/4-inch
- Set Size Increment: 1/64-inch
- Round shank accommodates most drill chucks
- Includes a metal index case