Cleveland Golf
Cleveland Golf Jobber Drill 11.5mm Cobalt 135 Deg NAS
An 11.5 mm cobalt jobber drill with a 135-degree split point, 94 mm flute length and 142 mm overall length meeting NAS 907 for stainless and alloy steels
- Cobalt steel withstands high heat when drilling stainless steel
- 135-degree split point starts on contact without wandering
- Meets NAS 907 Type J for aerospace-grade accuracy
- 5 mm metric size with 94 mm flute length
- Straw finish resists corrosion during heavy-duty use
Cleveland Golf Cobalt Jobber Drill 11.5mm
This cobalt steel jobber drill meets National Aerospace Standards 907 Type J for heavy-duty use. The 135-degree split point reduces walking and starts cleanly in stainless steel, tool steel, alloy steel and titanium. It is a single-piece tool designed for precision drilling in tough materials.
Check shank diameter and flute length before
The shank diameter measures 11.50 mm with a flute length of 94 mm and an overall length of 142 mm. Verify that your drill chuck accommodates the 11.50 mm shank and that the flute length suits the required hole depth. The tool carries a California Proposition 65 warning for a chemical known to cause cancer.
Straw finish and split point improve chip flow
The straw-coloured surface finish helps identify the cobalt grade and assists with chip evacuation during deep cuts. The 135-degree split point geometry is factory-ground to centre without a pilot hole, reducing thrust and heat buildup in hard alloys. No additional coatings or accessories are included with this single drill.
Highlights
- Cobalt steel withstands high heat when drilling stainless steel
- 135-degree split point starts on contact without wandering
- Meets NAS 907 Type J for aerospace-grade accuracy
- 5 mm metric size with 94 mm flute length
- Straw finish resists corrosion during heavy-duty use
Specifications
| Brand | Cleveland |
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Questions about this item
Does the Cleveland Golf 11.5 mm cobalt drill arrive as a single piece or do I need to order a set?
The supplier lists Number of Pieces 1, so only one drill is supplied; no extra pieces are included.
The listing shows Metric Size 11.50 and Decimal Equivalent .4528 — are these the same drill or two different options?
They describe the same drill: 11.50 mm metric diameter equals .4528 inch decimal equivalent.
What does the 135 degree split point do when the bit enters stainless steel or titanium?
The 135 degree split point reduces walking and starts cutting immediately in stainless steel, tool steel, alloy steel and titanium.
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