Chicago-Latrobe
Chicago-Latrobe 49208 Screw Machine Drill Bit 1/8 in 135 Degrees
A 1/8 inch screw machine drill bit with a 135 degree split point made from high speed steel with black oxide finish
- TypeDrill Bits
- Precise centring with 135-degree split point
- Fast chip removal from right-hand cutting direction
- Durable high-speed steel construction
- Corrosion-resistant black oxide finish
- Exact 0.1250 inch drilling diameter
Chicago-Latrobe 49208 Drill Bit
This Chicago-Latrobe 49208 is a high-speed steel screw machine drill bit sized at 1/8 inch with a decimal equivalent of .1250. It is designed for general-purpose drilling in metal, wood, and plastic for professional tradespeople and maintenance technicians.
Split point geometry for immediate starts
The 135-degree split point is self-centering and reduces thrust requirements, allowing the bit to start on contact without a centre punch. This design frees up workflow by eliminating the need for pilot holes in thin materials and fits standard drill chucks and quick-change adapters.
Black oxide finish resists heat buildup
The black oxide coating provides lubricity and corrosion resistance, helping to dissipate heat during normal drilling operations. Right-hand cutting direction ensures compatibility with standard drill motors, while the non-coolant-through construction suits dry machining environments.
Highlights
- Precise centring with 135-degree split point
- Fast chip removal from right-hand cutting direction
- Durable high-speed steel construction
- Corrosion-resistant black oxide finish
- Exact 0.1250 inch drilling diameter
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
Questions about this item
Will the 135-degree split point stay sharp through repeated drilling in hardened steel?
The 135-degree split point on this high-speed steel bit reduces walking and requires less thrust, extending edge life in tough materials.
Does the black oxide finish keep the bit cool enough for continuous use in a production drill press?
Black oxide provides lubricity and corrosion resistance, but sustained high-speed drilling still generates heat that requires proper cutting fluid or pauses.
What shank style does the 49208 use so I know it fits my 3-jaw chuck?
The 1/8-inch straight shank with decimal equivalent .1250 fits standard drill chucks and collets without an adapter.
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