Chicago-Latrobe
Chicago-Latrobe 41629 29/64 in 135 Degree Heavy-Duty Jobber Length Drill Bit
A 29/64 inch high-speed steel jobber drill bit with a 135-degree split point and TiN coating for general-purpose drilling
- TypeDrill Bits
- MaterialHAWA
- 135° split point starts on contact without walking
- 29/64 in diameter suits heavy-duty drilling tasks
- High-speed steel with TiN coating resists wear
- Jobber length gives standard reach for general use
- Decimal equivalent .4531 in for precise sizing
Chicago-Latrobe 41629 29/64 in Drill Bit
The Chicago-Latrobe 41629 is a jobber length drill bit sized at 29/64 in with a decimal equivalent of .4531. It features a 135 degree split point angle for accurate starting and reduced walking. The bit is constructed from high speed steel with a TiN coating for extended wear resistance. It is a non-coolant through design with zero coolant holes.
Suited for general metal drilling.
This bit suits machinists and maintenance technicians who need a durable fractional inch drill for steel, cast iron, and other ferrous materials. The split point geometry helps on curved surfaces and reduces thrust pressure. Builders who require through-coolant capability for deep hole evacuation should look at a different tool style. The lack of coolant holes limits chip removal in deep drilling applications.
29/64 in size with 135 degree split point decides
The critical specification is the 29/64 in diameter combined with the 135 degree split point angle. This exact size determines compatibility with the tapped hole or clearance requirement in your workpiece. The fractional inch sizing must match the drawing or fastener specification precisely. No other dimension or feature overrides this primary sizing factor.
Highlights
- 135° split point starts on contact without walking
- 29/64 in diameter suits heavy-duty drilling tasks
- High-speed steel with TiN coating resists wear
- Jobber length gives standard reach for general use
- Decimal equivalent .4531 in for precise sizing
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
Should I choose the 29/64 in size or a different fractional size?
Select the 29/64 in bit when the hole must be exactly 0.4531 in; choose another fractional size only if the drawing calls for a different diameter.
What does the 135 degree point angle do once the bit is in the drill?
The 135 degree split point centres itself on contact, reduces thrust and prevents walking on hard materials such as stainless steel.
How does the jobber length design limit what I can drill?
Jobber length gives standard flute and overall proportions for general-purpose depth; it is not a long-series bit, so hole depth is limited to typical jobber reach.
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