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Cleveland Golf cobalt drill bit, 29/64 inch, straw bronze finish, parabolic flutes

Cleveland Golf

Cleveland Golf 29/64 Parabolic Drill Bit 135° 2075

SKU CH-CVGA-TVJHT

A 29/64 inch cobalt jobber drill with a 135° parabolic flute for deep-hole chip removal

  • TypeAngle, Pitch & Slope Locators
  • Cobalt steel construction resists heat during heavy drilling
  • 135° notch point starts on contact without wandering
  • Parabolic flutes clear chips faster in deep holes
  • 29/64 in. diameter matches precise fractional sizing needs
  • Straw bronze finish reduces friction for longer tool life

Jobber Drill Bit for Cobalt Steel

This fractional jobber drill bit is built from cobalt steel with a straw bronze finish. The 135 degree notch point and right hand cutting direction suit high performance drilling tasks. It targets machinists and maintenance crews who need a durable bit for tough alloys.

Parabolic Flute Limits Chip Removal

The parabolic flute geometry improves chip evacuation in deep holes compared with standard flutes. Because the bit is not coolant fed, chips must clear through the flutes alone. This limits practical depth in materials that produce long stringy swarf.

29/64 Inch Diameter Decides Fit

The drill bit diameter is 29/64 inch, decimal equivalent .4531, with a matching shank diameter. Overall length is 5-5/8 inches and flute length is 4-3/16 inches. If the hole or holder calls for a different fraction the bit will not work.

Highlights

  • Cobalt steel construction resists heat during heavy drilling
  • 135° notch point starts on contact without wandering
  • Parabolic flutes clear chips faster in deep holes
  • 29/64 in. diameter matches precise fractional sizing needs
  • Straw bronze finish reduces friction for longer tool life

Specifications

BrandCleveland
TypeAngle, Pitch & Slope Locators

Questions about this item

How do I decide between the 29/64 inch size and another fractional size for my job?

Choose 29/64 inch when the hole must be exactly .4531 inch; other fractional sizes step up or down in 1/64 inch increments so pick the one that matches the tap or clearance chart for your fastener.

What does the 135 degree point angle actually do when the bit is in a drill press?

The 135 degree notch point centres itself faster on hard metal and reduces thrust, so the cobalt steel bit starts cleanly without a centre punch and resists walking on curved surfaces.

How does the parabolic flute design affect chip removal on a standard drill press?

The wide parabolic flutes pull chips out of deep holes more efficiently than standard twists, letting you drill the full 4-3/16 inch flute length in cobalt steel without frequent pecking.

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