Jobber Drill Bits, Fractional Sizes
Jobber Drill Bits are made from high-speed steel, with a 118° angle tip, and a black oxide finish.
These bits are in Fractional size. American Wire Size bits are listed separately. Click the Jobbers tab below to see more.
- Additional information
- Description
Additional information
| Size | 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 11/64″, 3/16″, 13/64″, 7/32″, 15/64″, 1/4″, 17/64′, 9/32″, 19/64″, 5/16″, 21/64″, 11/32″, 23/64″, 3/8″, 25/64″, 13/32″, 27/64″, 7/16″, 29/64″, 15/32″, 31/64″, 1/2″ |
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Jobber Drill Bits are made from high-speed steel, with a 118° angle tip, and a black oxide finish.
These bits are in Fractional size. American Wire Size bits are listed separately. Click the Jobbers tab above to see more.



The ThunderTwist’s TriCarb grade tip guarantees longer life with faster penetration due to increased chiseling action. ThunderTwist’s flute design, combined with copper brazing alloy creates the most reliable drill bit on the market. It is made with high quality American chrome-molybdenum nickel steel that is vacuum heat treated, and shot-peened for superior strength under the roughest conditions.











