Chicago-Latrobe
Chicago-Latrobe 53464 118° cobalt drill bit 1 in reduced shank
A 118° cobalt drill bit with a reduced shank for drilling large holes in hard metals
- TypeDrill Bits
- Cobalt construction resists heat during heavy drilling
- 118° point angle starts holes cleanly without walking
- 1 in diameter handles large bore applications
- 1/2 in reduced shank fits standard drill chucks
- Straw bronze finish adds corrosion resistance
1 in Cobalt Drill Bit for 1/2 in Chucks
The Chicago-Latrobe 53464 is a 1 in Silver & Deming drill bit made from machining cobalt with a straw/bronze finish. Its reduced shank fits standard 1/2 in drill chucks, letting heavy-duty portable drills cut large holes without a Morse taper machine. The 118 degree point angle suits general-purpose metal drilling.
Upgrade from Standard High-Speed Steel Bits
Cobalt material resists heat and wear better than ordinary high-speed steel, so the edge stays sharp longer in tough alloys and stainless steel. The jump is worth it when you drill large diameters repeatedly and need the bit to survive the heat that builds up in deep cuts. Standard bits dull faster and can work-harden the workpiece.
Handles Large-Diameter Metal Holes in Portable
This bit comfortably drills 1 in holes in steel, cast iron and similar metals using a handheld or bench drill with a 1/2 in chuck. It runs out when the application demands a larger diameter than 1 in or when a machine taper is required for rigidity in very deep holes. The cobalt substrate extends life but does not eliminate the torque limits of a reduced-shank connection.
Highlights
- Cobalt construction resists heat during heavy drilling
- 118° point angle starts holes cleanly without walking
- 1 in diameter handles large bore applications
- 1/2 in reduced shank fits standard drill chucks
- Straw bronze finish adds corrosion resistance
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
Questions about this item
Will the 1/2 inch reduced shank fit my drill chuck?
The reduced shank is sized at 1/2 inch so it fits any standard drill chuck that accepts a 1/2 inch shank.
How do I install the 118° cobalt bit correctly?
Insert the shank fully into the chuck, tighten all three jaws evenly, and start drilling at low speed to centre the 118° point before applying full pressure.
When will the cobalt cutting edges need resharpening?
Cobalt holds an edge longer than high-speed steel; resharpen the 118° point when drilling force increases or hole quality drops.
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