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Solid carbide spade drill bit, 3/16 inch, 118 degree point, bright finish

Chicago-Latrobe

Chicago-Latrobe 78486 118 Degree Solid Carbide Spade Drill 780

SKU CH-MJD4-Q4YG3

Solid carbide spade drill bit with a 118-degree point angle and bright uncoated finish

  • Solid carbide construction resists wear during high-speed drilling
  • 118-degree point angle centres quickly on flat surfaces
  • Bright uncoated finish reduces chip adhesion in soft materials
  • 3/16 inch diameter suits precision hole-making tasks
  • Decimal equivalent .1875 simplifies tool selection and setup

Solid Carbide Spade Drill 78486

This Chicago-Latrobe solid carbide spade drill bit is a new cutting tool built for precision drilling in hard materials. It suits machinists and maintenance technicians who need a bright uncoated tip for general-purpose work on ferrous and non-ferrous metals. The 118 degree point angle provides reliable centring without a pilot hole.

Best for short-run and manual operations

The bright finish and carbide construction make it a good fit for job-shop runs, toolroom maintenance and hand-fed drilling where coating adhesion is not a concern. It is less suited for high-volume CNC cells that demand coated tooling for extended life or for deep-hole cycles where a split-point geometry would improve chip evacuation.

118 degree point angle decides fit

The fixed 118 degree point angle is the single specification that determines whether this drill matches the application. It centres cleanly on flat surfaces but does not self-centre as aggressively as steeper angles on curved or angled entries. Verify the angle requirement before ordering.

How it compares

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

Price $18.99
Cheaper than about 66% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE

Questions about this item

Should I pick the 3/16 in or the .1875 in version of the 78486 spade drill?

Both figures describe the same 3/16 in drill bit; .1875 in is simply the decimal equivalent, so there is only one size to choose.

What does the 118 degree point angle mean when the bit is in a drill press?

The 118 degree point is a general-purpose geometry that centres quickly in steel, aluminium and wood without a pilot hole.

How does the solid carbide construction affect the shank fit in a standard 1/2 in chuck?

The carbide body is brazed to a steel shank sized for a 1/2 in chuck, so the interface is a conventional round shank, not a special taper.

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