Cleveland Golf
Cleveland Golf Jobber Drill 10.5mm Cobalt 135 Deg NAS
A 10.5 mm cobalt jobber drill with a 135-degree split point, 133 mm overall length and 87 mm flute length, built to NAS 907 Type J
- TypeAngle, Pitch & Slope Locators
- 5 mm cobalt steel resists heat and wear
- 135-degree split point starts on contact without walking
- NAS 907 Type J standard meets aerospace-grade precision
- 87 mm flute length clears chips efficiently
- 133 mm overall length reaches deep holes
Jobber Drill 10.5mm Cobalt NAS 907
This 10.5mm cobalt jobber drill meets National Aerospace Standards 907 Type J for heavy-duty applications. The split-point geometry at 135 degrees starts on contact and reduces walking on hard materials. It is suited for professional workshops and aerospace maintenance where NAS compliance is required.
135-degree split point limits
The 135-degree split point centres itself without a pilot hole, yet the cobalt substrate still demands rigid setups and controlled feed rates to avoid chipping. Right-hand spiral flutes evacuate chips efficiently in through-holes up to 87.00mm deep, but the tool lacks internal coolant channels for deep blind holes. Users must supply external flood or mist coolant when drilling stainless or high-temperature alloys.
Straw bronze finish and straight shank
The straw-bronze surface treatment identifies the cobalt grade and provides modest lubricity during break-in. A 10.50mm straight shank fits standard three-jaw chucks and collets without reducing shank diameter, so the full 133.00mm overall length is available for reach. The heavy-duty web resists deflection in tough alloys, but the absence of a whistle-notch flat means the drill cannot be secured in weldon-style holders.
Highlights
- 5 mm cobalt steel resists heat and wear
- 135-degree split point starts on contact without walking
- NAS 907 Type J standard meets aerospace-grade precision
- 87 mm flute length clears chips efficiently
- 133 mm overall length reaches deep holes
Specifications
| Brand | Cleveland |
|---|---|
| Type | Angle, Pitch & Slope Locators |
Questions about this item
Should I pick the 10.5 mm jobber drill or a different diameter for my project?
Choose the 10.5 mm size when your drawing or pilot hole calls for a 10.50 mm (0.4134 in) finished hole; match the drill diameter to the required hole size.
What does the 135 degree split point do once the drill is in the machine?
The 135 degree split point centres itself on contact, reduces thrust and starts cutting immediately in hard materials such as stainless or aerospace alloys.
What does the NAS 907 Type J standard cap in practice?
NAS 907 Type J defines the heavy-duty cobalt construction, 135 degree split point and dimensional tolerances for aerospace-grade drilling consistency.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
