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Cobalt jobber drill bit, 19/32 inch, 135-degree split point, straw-bronze finish

Chicago-Latrobe

Chicago-Latrobe 50080 19/32 in 135 Degree Cobalt Drill Bit

SKU CH-392Z-E0F4Z

A 19/32 inch cobalt jobber drill bit with a 135-degree split point for hard-metal drilling

  • TypeDrill Bits
  • MaterialHAWA
  • 19/32 in fractional size for precise hole drilling
  • 135-degree split point reduces walking on hard materials
  • Cobalt construction resists heat during high-speed drilling
  • Jobber length provides standard reach for general use
  • Straw bronze finish indicates proper heat treatment

Chicago-Latrobe 50080 Cobalt Drill Bit

This Chicago-Latrobe 50080 jobber length drill bit is built from cobalt steel for drilling hard metals such as stainless steel and high-strength alloys. The 135 degree split point reduces walking and starts on contact, making it suitable for machinists and maintenance technicians who need precise holes in tough materials. The fractional 19/32 inch size with a 0.5938 decimal equivalent fits standard drill chucks for workshop and field use.

Installation and Common Issues

The bit installs directly into any standard three-jaw chuck; tighten securely on the flats to prevent slipping under torque. Because the split point is designed for self-centering, a centre punch mark is usually unnecessary on flat stock, but applying steady feed pressure avoids chipping the cutting edges. The most common problem is overheating when drilling deep holes without lubrication, which can dull the cobalt tips quickly.

Pre-Order Checks

Verify that your drill chuck accepts a 19/32 inch shank, as some smaller cordless models only open to 1/2 inch. Confirm the material you are drilling matches cobalt capabilities; the bit is not intended for softwood, plastics or non-ferrous metals where high-speed steel would cut faster. Ensure you have cutting fluid or oil available, since the tool has no internal coolant holes and relies on external lubrication for heat control.

Highlights

  • 19/32 in fractional size for precise hole drilling
  • 135-degree split point reduces walking on hard materials
  • Cobalt construction resists heat during high-speed drilling
  • Jobber length provides standard reach for general use
  • Straw bronze finish indicates proper heat treatment

Specifications

BrandCHICAGO-LATROBE
TypeDrill Bits
MaterialHAWA

Questions about this item

How can I verify the 135-degree split point is cutting cleanly after I install the bit?

The 135-degree split point should self-centre and produce short, curled chips in steel without walking; if the bit drills true and the hole matches the .5938 decimal equivalent, it is working as intended.

Does the 50080 package include any lubricant or only the single cobalt jobber bit?

The box contains the 19/32-inch cobalt jobber drill bit only; cutting fluid or lubricant must be purchased separately.

When should I choose the 19/32-inch 50080 over another fractional size in the same cobalt series?

Select the 19/32-inch 50080 when the job calls for a .5938-inch hole; other fractional sizes in the series cover different diameters.

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