Chicago-Latrobe
Chicago-Latrobe 41632 135 Degree Heavy-Duty Jobber Length Drill
A 1/2 inch high-speed steel jobber drill bit with a 135-degree split point and TiN coating for heavy-duty drilling
- TypeDrill Bits
- MaterialHAWA
- 135° split point starts on contact without walking
- High-speed steel with TiN coating resists wear in tough materials
- Jobber length gives standard reach for general drilling
- ½ inch diameter suits common fastener and clearance holes
- Decimal size .5000 matches fractional spec for precise fits
1/2-inch Jobber Drill Bit
The Chicago-Latrobe 41632 is a jobber-length drill bit with a 1/2-inch diameter and a 135-degree split point. It is made from high-speed steel with a titanium nitride coating for general-purpose drilling. This tool suits machinists and maintenance technicians who need a standard fractional bit for metal, wood or plastic.
Split Point Reduces Walking Under Pressure
The 135-degree split point centres the bit quickly and resists walking when feed pressure is sustained. High-speed steel construction maintains hardness during extended cuts, while the TiN coating lowers friction and heat buildup. The non-coolant-through design relies on external lubrication or peck drilling to manage chips in deep holes.
Fractional Sizing Limits Interchangeability
The .5000 decimal equivalent fixes the bit to a precise 1/2-inch fractional standard, so it cannot replace metric or letter-gauge sizes without a separate tool. Jobber length gives a common flute-to-overall ratio, but it does not reach the depths of taper-length or aircraft-extension drills. Users needing through-coolant delivery must select a different bit style.
Highlights
- 135° split point starts on contact without walking
- High-speed steel with TiN coating resists wear in tough materials
- Jobber length gives standard reach for general drilling
- ½ inch diameter suits common fastener and clearance holes
- Decimal size .5000 matches fractional spec for precise fits
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
How much heat does the 135-degree split point on the 41632 generate during extended drilling in steel?
The 135-degree split point is designed to self-centre and reduce thrust, which lowers heat buildup when drilling steel with this high-speed steel bit.
What shank size must my drill chuck accept to run the 41632 jobber-length bit?
The bit has a 1/2-inch shank, so the chuck must open to at least 1/2 inch to hold it securely.
Will the 1/2-inch 41632 bit fit the same chuck as the 3/8-inch bits I already own?
No, a 1/2-inch shank requires a chuck capacity of 1/2 inch or larger, while 3/8-inch bits fit smaller chucks.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
