Drill America
Drill America DWD60J-CO-SET 60 Piece Cobalt Jobber Drill Bit Set
A 60-piece cobalt jobber-length drill bit set for hard materials such as cast iron, stainless steel and titanium, with a 135-degree split point that prevents walking
- ColorTransparent
- 60 cobalt bits cover cast iron, stainless steel and titanium
- 135 degree split point prevents walking for accurate starts
- 30 percent faster drilling speeds than M2 high speed steel
- Jobber length with round shank fits many tool holders
- California Prop 65 warning for cancer and reproductive harm
60 Piece Cobalt Jobber Drill Bit Set
This Drill America set supplies 60 cobalt jobber length drill bits designed for drilling tough, high tensile strength materials such as cast iron, inconel, stainless steel and titanium. The bits feature a 135 degree split point tip for fast penetration and accurate drilling without walking. They display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel. The round shank fits a wide range of tool holding systems for versatile use.
Suited for metalworkers needing high-speed
Professionals who regularly drill cast iron, stainless steel, titanium or inconel will benefit from the cobalt construction and split point geometry. The jobber length and round shank suit standard drill chucks and holders. Buyers who primarily work in wood, plastic or soft metals will not need the added heat resistance and speed capability of cobalt. Users requiring specialised lengths, reduced shank diameters or coated bits for specific applications should look at something else.
Transparent case organises all 60 pieces
The transparent container keeps the full assortment visible and sorted for quick selection on the job. No additional software, lubricants or specialised accessories are included with the set. The California Proposition 65 notice indicates the product contains chemicals known to the state to cause cancer and birth defects or other reproductive harm, so appropriate handling precautions apply. The case itself adds no cutting performance but simplifies storage and transport.
Highlights
- 60 cobalt bits cover cast iron, stainless steel and titanium
- 135 degree split point prevents walking for accurate starts
- 30 percent faster drilling speeds than M2 high speed steel
- Jobber length with round shank fits many tool holders
- California Prop 65 warning for cancer and reproductive harm
Specifications
| Brand | DRILL AMERICA |
|---|---|
| Color | Transparent |
Questions about this item
What drill chuck size do I need to hold the round shanks in this 60 piece cobalt set?
The bits have a standard round shank that fits any three‑jaw chuck accepting jobber‑length drills; match the chuck capacity to the largest bit you plan to run.
Can I run these 135° split‑point cobalt bits in the same drill press I use for 118° high‑speed‑steel bits?
Yes — the 135° split point reduces walking and allows up to 30% higher speeds, so the same press works, just adjust feed and RPM for the harder material.
How can I confirm the 135° split point is cutting correctly after setup?
The bit should start on contact without centre‑punching, produce short, curled chips in stainless or titanium, and the hole diameter should match the bit size with minimal oversize.
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