Chicago-Latrobe
Chicago-Latrobe 42629 29/64 in 135 Degree Jobber Drill Bit
A 29/64 inch high-speed steel jobber drill bit with a 135 degree split point and TiAlN coating
- TypeDrill Bits
- Split-point tip starts on contact with 135-degree angle
- High-speed steel with TiAlN coating resists wear
- Jobber length handles 29/64 in holes at .4531 decimal
- Fractional-inch sizing fits standard drill chucks
- Heavy-duty construction suits repetitive drilling tasks
Drill Bit 29/64 Inch 135 Degree Split Point
This Chicago-Latrobe 42629 jobber length drill bit is made from high speed steel with a TiAlN coating. The 135 degree split point geometry is designed to reduce walking and improve starting accuracy in metal. It has a fractional diameter of 29/64 inch and a decimal equivalent of .4531.
For Metal Drilling Without Coolant Through
The split point and TiAlN coating suit general purpose drilling in steel and other metals where external coolant is supplied or not required. It is not intended for machines that deliver coolant through the tool because the bit has zero coolant holes. Buyers needing through-coolant capability should look at a different drill design.
Decimal Equivalent .4531 Inch Decides Fit
The critical specification is the decimal equivalent of .4531 inch, which determines whether the bit matches the hole size required by the drawing or tap chart. Verify this exact figure against the specification before purchase.
Highlights
- Split-point tip starts on contact with 135-degree angle
- High-speed steel with TiAlN coating resists wear
- Jobber length handles 29/64 in holes at .4531 decimal
- Fractional-inch sizing fits standard drill chucks
- Heavy-duty construction suits repetitive drilling tasks
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
Questions about this item
Will the 29/64 in shank fit the chuck on my older 1/2 in drill press?
The 29/64 in shank is smaller than a 1/2 in chuck capacity, so it will clamp securely in that older drill press.
How can I confirm the 135 degree split point is cutting correctly after I start drilling?
A properly working 135 degree split point self-centres on contact and produces short, curled chips in steel without the bit walking.
Does the 42629 jobber bit come in a protective case or do I need to buy a bit holder separately?
The bit is supplied as a single 29/64 in TiAlN coated high-speed steel drill; a case or organiser is not included.
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