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Cobalt jobber drill bit, straw bronze finish, parabolic flutes, 135-degree point

Cleveland Golf

Cleveland Golf Jobber Drill #6 Cobalt 135° Parabolic 2075 .2040

SKU CH-NE14-RMHEV

Cobalt jobber drill with 135° parabolic flute cuts hardened steels and stainless, list 2075 .2040

  • Product typeAngle, Pitch & Slope Locators
  • Cobalt steel construction handles high-strength alloys and stainless steel
  • 135-degree notch point starts cleanly in chilled cast iron and tool steels
  • Parabolic flute design improves chip evacuation during deep drilling
  • Right-hand cutting direction suits standard drill chucks and CNC machines
  • Straw/bronze finish identifies the high-performance cobalt grade at a glance

Jobber Drill #6 Cobalt 135° Parabolic

The Cleveland Golf Jobber Drill #6 is a high-performance cutting tool made from cobalt steel with a straw-bronze finish. It features a 135-degree notch point and parabolic flute design for efficient chip evacuation. This right-hand cutting drill is built for drilling chilled cast iron, high-speed steel, high-strength alloy steel, stainless steel, and tool steels.

3-3/4 Inch Overall Length 2-1/2 Inch Flute

The drill has an overall length of 3-3/4 inches and a flute length of 2-1/2 inches with a shank diameter of .2040 inches. Its non-coolant-through design means it relies on external lubrication or air cooling during operation. The parabolic flute geometry helps pull chips away from the cutting zone in deep-hole applications.

List Number 2075 Grade High Performance

Under sustained load the cobalt steel construction maintains hardness at elevated temperatures better than standard high-speed steel. The 135-degree point angle reduces thrust force and helps prevent work hardening in tough alloys. It is not suited for materials outside the listed steel and iron categories or for coolant-through machining setups.

How it compares

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

Price $11.99
Cheaper than about 75% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameCleveland
Product typeAngle, Pitch & Slope Locators

Questions about this item

Does the 135-degree point angle limit how deep I can drill in stainless steel before the bit walks?

The 135-degree notch point is designed to self-centre in stainless steel and high-strength alloys, reducing walk at the start of the hole.

Will the cobalt steel overheat if I run this bit continuously through chilled cast iron all day?

Cobalt steel retains hardness at higher temperatures than standard high-speed steel, so it resists overheating during prolonged cuts in tough materials.

What shank size must my drill chuck accept to hold the .2040-diameter shank on this bit?

Your chuck needs to grip a 0.2040-inch round shank, which is the same diameter as the #6 wire-gauge drill body.

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