Chicago-Latrobe
Chicago-Latrobe 53451 118° 51/64" Cobalt Drill Bit 1/2" Shank
51/64 inch cobalt drill bit with 118-degree point and 1/2 inch reduced shank for large-hole drilling
- TypeDrill Bits
- Cobalt construction resists heat during heavy drilling
- 118° point angle centres quickly on contact
- 51/64" diameter creates large precise holes
- 1/2" reduced shank fits standard chucks
- Straw bronze finish adds wear resistance
Chicago-Latrobe 53451 Cobalt Drill Bit
This Chicago-Latrobe 53451 drill bit is a reduced-shank cutting tool made from machining cobalt with a straw-bronze finish. It features a 118-degree point angle and a 1/2-inch shank designed for use in larger drill chucks. The bit is supplied new for professional and industrial drilling tasks.
Suited for machinists drilling 51/64-inch holes
This bit suits machinists and maintenance technicians who need a cobalt tool for drilling 51/64-inch diameter holes in tough materials. The reduced shank allows compatibility with 1/2-inch capacity chucks. It is not for buyers who require a different drill diameter or a standard shank size matching the flute.
51/64-inch drill diameter
The decisive specification is the 51/64-inch cutting diameter combined with a 1/2-inch reduced shank. This specific geometry determines whether the bit fits your chuck and produces the required hole size. Verify both measurements against your application requirements before purchase.
Highlights
- Cobalt construction resists heat during heavy drilling
- 118° point angle centres quickly on contact
- 51/64" diameter creates large precise holes
- 1/2" reduced shank fits standard chucks
- Straw bronze finish adds wear resistance
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
Questions about this item
When will the 51/64" cobalt drill bit need resharpening or replacement?
Resharpen the 118° point when cutting slows or heat builds; replace the bit if the reduced 1/2" shank shows wear or the cobalt edge chips.
What stops a long drilling run first on this 51/64" cobalt bit?
Heat buildup at the 118° point usually limits continuous drilling before the cobalt material itself fails.
How hot or loud does the 51/64" bit get during all-day drilling?
The straw/bronze finish shows typical cobalt heat colours; noise comes from the drill motor, not the 53451 bit itself.
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