Cleveland Golf
Cleveland Golf Jobber Drill 27/64 Cobalt 135° Parabolic 2075
A 27/64 inch cobalt jobber drill with 135° parabolic flute for high-performance drilling
- TypeAngle, Pitch & Slope Locators
- Cobalt steel resists heat for longer edge life
- 135-degree notch point starts holes without wandering
- Parabolic flutes clear chips from deep cuts
- 27/64-inch diameter matches fractional specs
- 5-3/8-inch overall length reaches confined spots
Jobber Drill 27/64 Cobalt 135°
The Cleveland Golf Jobber Drill 27/64 is a fractional-inch cobalt steel bit built for high-performance drilling in tough metals. Its 135-degree notch point reduces walking and the parabolic flute design clears chips efficiently. The straw-bronze finish adds wear resistance. This right-hand cutting tool suits professional machinists and serious fabricators.
Upgrade from standard high-speed steel bits
Cobalt steel withstands higher heat than basic HSS, so the jump is worth it when drilling stainless steel, titanium or hardened alloys that burn up ordinary bits. The parabolic flute moves chips faster in deep holes, reducing breakage. Buyers who only drill mild steel or wood will not see the benefit and should choose a less costly alternative.
Straightforward install in any 3-jaw chuck
The shank diameter matches the 27/64 inch drill size, so it locks directly into standard drill presses or hand drills without sleeves. Use cutting fluid and moderate pressure; forcing the feed snaps the web. The notch point centres well, but it still requires a rigid setup — worn chucks or flexible arms cause chatter and premature dulling.
Highlights
- Cobalt steel resists heat for longer edge life
- 135-degree notch point starts holes without wandering
- Parabolic flutes clear chips from deep cuts
- 27/64-inch diameter matches fractional specs
- 5-3/8-inch overall length reaches confined spots
Specifications
| Brand | Cleveland |
|---|---|
| Type | Angle, Pitch & Slope Locators |
Questions about this item
What shank diameter does the 27/64 cobalt drill bit need for a secure fit?
The shank diameter is 27/64 inch, matching the drill bit size exactly for direct insertion into a compatible chuck or collet.
How is the 135-degree notch point installed in a drill, and what step is often missed?
Insert the right-hand cutting shank fully into the chuck, tighten securely, and verify the 135-degree point angle is centred; users often forget to confirm full seating before drilling.
When will the parabolic flute cobalt bit need replacement or maintenance?
Replace the bit when the straw/bronze finish shows heavy wear, the 135-degree notch point dulls, or the parabolic flutes no longer clear chips efficiently during use.
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