Chicago-Latrobe
Chicago-Latrobe 41631 31/64 in 135° Split Point Drill Bit
A 31/64 inch jobber-length drill bit with a 135-degree split point for precise starts in metal
- TypeDrill Bits
- MaterialHAWA
- 31/64 inch fractional size matches exact hole requirements
- 135-degree split point starts on contact without wandering
- High-speed steel with TiN coating resists wear in tough materials
- Jobber length provides standard reach for general drilling
- Decimal equivalent .4844 simplifies precision setup calculations
Chicago-Latrobe 41631 31/64 in Drill Bit
This Chicago-Latrobe 41631 is a jobber length drill bit made from high speed steel with a TiN coating. It features a 135 degree split point designed for accurate starting and reduced walking. The fractional size is 31/64 in with a decimal equivalent of .4844 in. It is a non-coolant through tool with zero coolant holes.
Suited for general heavy-duty drilling in metal
The 135 degree split point geometry suits operators who need a self-centering bit for harder materials such as stainless steel or alloy steel. The TiN coating adds wear resistance for extended life in production environments. Buyers who require coolant-through capability or a different point angle for specialised applications should look at other tooling options.
31/64 in capacity for medium-duty holes
This bit comfortably handles drilling 31/64 in diameter holes in ferrous and non-ferrous metals where a jobber length is appropriate. The high speed steel construction provides adequate rigidity for standard machine or handheld use. It runs out when a project demands through-coolant delivery, a longer flute length, or a diameter outside the 31/64 in specification.
Highlights
- 31/64 inch fractional size matches exact hole requirements
- 135-degree split point starts on contact without wandering
- High-speed steel with TiN coating resists wear in tough materials
- Jobber length provides standard reach for general drilling
- Decimal equivalent .4844 simplifies precision setup calculations
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
Will the 31/64 in drill bit fit my standard 1/2 in drill chuck?
Yes, the 31/64 in shank is smaller than 1/2 in, so it fits a standard 1/2 in drill chuck.
Can I use this 135 degree split point bit on older steel workpieces without a pilot hole?
The 135 degree split point design is made to start on contact and reduce walking on steel, so a pilot hole is often not needed.
How do I know the TiN coating on this 41631 bit is performing correctly?
The gold-coloured TiN coating should stay intact and the bit should cut smoothly without excessive heat or blue discolouration on the steel.
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