Cleveland Golf Jobber Drill 27/64 Cobalt 135° Parabolic 2075

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.