Cleveland Golf
Cleveland Golf Cobalt Jobber Drill 3/8 In 135 Deg Parabolic 2075
A cobalt steel jobber drill with a 135-degree parabolic flute for efficient chip removal
- TypeAngle, Pitch & Slope Locators
- Cobalt steel resists heat for longer bit life
- 135-degree notch point starts holes without wandering
- Parabolic flutes clear chips faster in deep cuts
- Straw bronze finish reduces friction and wear
- Right-hand cutting suits standard drill chucks
Cobalt Jobber Drill 3/8 Inch
This cobalt steel jobber drill bit handles general-purpose drilling in tough materials. The 135-degree notch point reduces walking and starts holes cleanly without a centre punch. It suits maintenance technicians and metalworkers who need reliable performance across steel and alloy workpieces.
Parabolic Flute Straw Bronze Finish
The parabolic flute geometry clears chips efficiently during deep-hole drilling, reducing heat buildup and binding. A straw bronze surface finish adds lubricity and corrosion resistance for longer service life. The 3/8-inch straight shank fits standard drill chucks and collets without adapters.
Upgrade From Standard High-Speed Steel Bits
This bit replaces conventional HSS drills when cutting harder steels or running extended production cycles. Cobalt content maintains edge hardness at higher temperatures, lowering replacement frequency. The jump is worth it for shops drilling stainless or high-tensile alloys where standard bits dull quickly.
Highlights
- Cobalt steel resists heat for longer bit life
- 135-degree notch point starts holes without wandering
- Parabolic flutes clear chips faster in deep cuts
- Straw bronze finish reduces friction and wear
- Right-hand cutting suits standard drill chucks
Specifications
| Brand | Cleveland |
|---|---|
| Type | Angle, Pitch & Slope Locators |
Questions about this item
What drill-point standard does the 135-degree notch point follow?
The 135-degree notch point is ground to a standard split-point geometry that self-centres without a centre punch and reduces thrust on portable drills.
What chuck capacity is required for the 3/8-inch shank?
A 3/8-inch or larger drill chuck is needed; the shank diameter matches the .3750 flute diameter so no reducer sleeve fits.
How do you avoid snapping the cobalt bit when drilling deep holes?
Peck drill every diameter of depth, flood the parabolic flutes with cutting fluid, and never lean on the 5-inch overall length — let the notch point do the work.
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