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Cleveland Golf cobalt jobber drill 11/64 inch straw bronze finish parabolic flute 135 degree point

Cleveland Golf

Cleveland Golf Jobber Drill 11/64" Cobalt 135° Parabolic 2075

SKU CH-4QB4-1358K

Cobalt jobber drill bit with a 135-degree notch point and parabolic flutes for efficient chip removal

  • Product typeAngle, Pitch & Slope Locators
  • Cobalt steel resists heat and wear during drilling
  • 135-degree notch point starts holes cleanly without wandering
  • Parabolic flutes clear chips efficiently for smoother cuts
  • 11/64-inch fractional size matches common fastener specs
  • High-performance grade built for demanding professional use

Cleveland Golf Jobber Drill 11/64" Cobalt

This Cleveland Golf jobber drill is a fractional-inch cutting tool made from cobalt steel with a straw-bronze finish. It measures 11/64 inch in diameter and carries list number 2075. The 135-degree notch point and parabolic flute design help manage chip evacuation in deep-hole applications. Right-hand cutting direction suits standard drill motors and drill presses.

Suited for metalworkers drilling high-tensile alloys

Machinists and maintenance technicians who need a durable bit for stainless steel, titanium or other hard metals will benefit from the cobalt substrate and parabolic geometry. The 3-1/4 inch overall length and 2-1/8 inch flute length limit reach in very deep holes. Buyers who need coolant-through capability or a reduced-shank design for larger chucks should look at something else.

135-degree notch point with parabolic flutes

The 135-degree point angle combined with parabolic flutes is the specification that determines whether this bit matches the material and hole-depth requirements. Cobalt steel retains hardness at elevated temperatures generated during high-speed drilling. The 0.1719 decimal equivalent confirms the exact fractional size for tooling records and fixture setups.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 90% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameCleveland
Product typeAngle, Pitch & Slope Locators

Questions about this item

What chuck size do I need for the 11/64" shank on this drill bit?

Use a chuck that accepts an 11/64 inch shank diameter; the bit's shank matches its cutting diameter exactly.

How do I avoid breaking the 135° notch point when starting a hole?

Centre-punch the workpiece first, then apply steady pressure without side loads so the notch point engages cleanly.

When should I replace this cobalt parabolic flute bit?

Replace it when the 135° notch point rounds over or the parabolic flutes no longer clear chips, leaving burn marks.

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