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Cylindrical cobalt drill bit, straw-bronze finish, split point, 11/16 inch

Chicago-Latrobe

Chicago-Latrobe 50086 11/16 in 135° Cobalt Jobber Drill Bit

SKU CH-SHGH-W8KW0

An 11/16 inch cobalt jobber drill bit with a 135 degree split point for heavy-duty drilling

  • Product typeDrill Bits
  • Main materialHAWA
  • Cobalt steel resists heat and wear on tough metals
  • 135-degree split point starts on contact without wandering
  • 11/16 inch diameter suits large-hole drilling tasks
  • Jobber length gives standard reach for general use
  • Straw bronze finish shows genuine cobalt construction

Chicago-Latrobe 50086 Cobalt Jobber Drill Bit

This Chicago-Latrobe 50086 drill bit is made from cobalt steel for heavy-duty drilling applications. The 11/16 inch fractional size suits maintenance and fabrication tasks requiring this specific diameter. Its jobber length provides standard reach for general-purpose holemaking in metal. Professionals and serious DIY users gain a durable cutting tool for tough materials.

135° Split Point Thermals Noise Power

The 135 degree split point geometry reduces thrust force and heat buildup during drilling operations. Cobalt construction maintains hardness at elevated temperatures better than standard high-speed steel. The straw bronze surface finish helps identify the tool and provides some corrosion resistance. No coolant holes are present, so external lubrication manages heat in deep cuts.

11/16 Inch Decimal Equivalent .6875

The drill bit diameter is 11/16 inch with a decimal equivalent of .6875 inch. This single specification determines whether the bit matches the required hole size for the job. Buyers needing a different fractional, metric, or letter size cannot use this bit. Verify the exact diameter before purchase to ensure compatibility with the application.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $72.99
Pricier than about 76% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits
Size & build
Main materialHAWA

Questions about this item

How do I install the 11/16 in 135° split-point cobalt jobber bit in my drill chuck, and what step do people often miss?

Open the chuck fully, insert the shank until it seats, then tighten securely; the step many miss is verifying the split point runs true before drilling.

What maintenance or replacement will the 11/16 in cobalt jobber drill bit need over time?

The split point dulls with use; resharpen the 135° angle on a proper grinder or replace the bit when cutting efficiency drops.

What limit appears first on the 11/16 in cobalt jobber bit during sustained drilling?

Heat buildup at the 135° split point is the first limit; without coolant holes the bit loses temper faster under continuous load.

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