Chicago-Latrobe
Chicago-Latrobe 44431 31/64" HSS Black/Gold 118° Jobber Drill Bit
A 31/64 inch high-speed steel jobber drill bit with black and gold finish, 118 degree point, model 44431
- TypeDrill Bits
- MaterialHAWA
- High-speed steel construction resists wear during drilling
- 31/64 inch diameter matches precise fractional sizing
- 118-degree point angle starts holes cleanly in metal
- Bright uncoated finish suits general-purpose applications
- Jobber length provides standard reach for everyday tasks
31/64" Jobber Drill Bit for General Drilling
This Chicago-Latrobe 44431 drill bit is made from high speed steel and features a conventional 118 degree point angle. It suits general-purpose drilling in metal, wood and plastic for trade professionals and workshop users. The fractional 31/64 inch size provides a precise fit for specific hole requirements.
Sustained Drilling Performance with HSS Construction
The high speed steel body maintains hardness at elevated temperatures generated during extended drilling cycles. A bright uncoated finish reduces friction buildup compared to coated alternatives in certain materials. The 118 degree conventional point centres accurately without walking, preserving hole quality over repeated use.
Upgrade from Worn or Smaller Bits for Exact Sizing
This bit replaces dull or damaged jobber drills of the same diameter, restoring clean cutting action and dimensional accuracy. The jump is worthwhile when a 0.4844 inch decimal equivalent hole is specified and existing bits have lost their edge geometry. It does not suit coolant-through applications or materials requiring specialised point geometries.
Highlights
- High-speed steel construction resists wear during drilling
- 31/64 inch diameter matches precise fractional sizing
- 118-degree point angle starts holes cleanly in metal
- Bright uncoated finish suits general-purpose applications
- Jobber length provides standard reach for everyday tasks
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
Does the 118-degree point angle on the 31/64-inch bit generate much heat during extended drilling?
The 118-degree conventional point is a general-purpose geometry. Heat buildup depends on material, speed, feed rate and cutting fluid rather than the bit alone.
What shank style does the 44431 bit use so I know if my drill chuck will accept it?
Jobber-length bits have a straight round shank the same diameter as the flute, so any standard three-jaw chuck that opens to 31/64 inch will hold it.
Will the bright uncoated finish on this 0.4844-inch bit wear quickly when I use it in my older drill press?
High-speed steel without coating cuts cleanly in mild steel and wood; the press's run-out and speed setting affect wear more than the finish itself.
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