12pc Cobalt Heavy-Duty Jobber Drill Bit Set
Updated August 8, 2026
| Lot number | 1683 |
| Category | Tools & Shop Equipment |
| Auction | Tuesday Deals 8-11-26 |
| Date | August 11, 2026 at 8:00 PM EDT |
| Auction house | Blue Door Deals |
| Location | Salt Lake City, Utah |
Location: S Condition: New Damaged?: No In Packaging?: Yes Missing Parts?: No This High Speed Steel Heavy-Duty Jobber Length Drill features drills with right-hand direction of cut and was designed for drilling metal, wood and plastic. The drills were precision ground to tight tolerances with geometries that include a 135-degree split point to eliminate walking of the drills on the work-pieces and 3 flats on the shanks of drills above 11 in./64 in. For tighter chucking. This premium high speed steel drill set also has nitride black and gold treatment for increased hardness and tool longevity.. Superior rigidity in hand or machine drilling. Made of industrial-grade cobalt steel designed for tough and work hardened materials like stainless, armor and INCONEL. Cobalt steel is a refractory material that resists heat and allowing the tool to run cooler and last longer. 135-degree split point eliminates walking and drills on contact along with requiring less force to push it also drills faster than a conventional pointed drill. Straw finish adds lubricity and identifies cobalt. Precision ground to tight tolerances. Heavy-duty construction for extreme operating conditions. Bit Diameter: 3/16 in. Bit Material: Cobalt. Individual/Set: Individual. Bit Length (in.): 3.5 in. Number of Pieces: 11-20 Pieces. Number of Pieces: 12. Material Application: Steel. Shank Diameter: 3/16 in.
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