Chicago-Latrobe
Chicago-Latrobe 44924 135° Cobalt Jobber Drill Bit 3/8 in
A 3/8 inch cobalt steel jobber drill bit with a 135 degree split point for heavy-duty drilling
- TypeDrill Bits
- MaterialCobalt Steel
- 135° split point starts drilling on contact without wandering
- Cobalt steel resists heat and wear in hard metals
- TiAlN coating reduces friction and extends cutting life
- Jobber length gives standard reach for general-purpose drilling
- 3/8 in diameter handles common fastener and clearance holes
Chicago-Latrobe 44924 Cobalt Jobber Drill Bit
The Chicago-Latrobe 44924 is a jobber length drill bit made from cobalt steel with a TiAlN coating. It features a 135-degree split point designed for self-centering and reduced thrust. The bit has a 3/8 inch diameter with a decimal equivalent of .3750. It is a non-coolant through tool with zero coolant holes.
Suited for hard metal drilling.
This bit suits machinists and maintenance technicians drilling into stainless steel, titanium and other hard alloys where cobalt heat resistance and the 135-degree geometry extend tool life. It is not suited for wood, plastic or soft aluminium where the aggressive split point can grab and the coating adds unnecessary cost. Buyers who need a coolant-through design for deep-hole chip evacuation should look at a different style.
135-degree split point geometry decides fit
The 135-degree split point is the specification that determines whether this bit matches the application. It changes the rake angle and web thickness compared with a standard point, so it requires a rigid setup and appropriate feed rates. If the machine or material calls for a different point angle, this drill will not perform as intended.
Highlights
- 135° split point starts drilling on contact without wandering
- Cobalt steel resists heat and wear in hard metals
- TiAlN coating reduces friction and extends cutting life
- Jobber length gives standard reach for general-purpose drilling
- 3/8 in diameter handles common fastener and clearance holes
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | Cobalt Steel |
Questions about this item
How does the 135 degree split point behave once the bit is in a drill?
The 135 degree split point reduces walking on hard metal and starts cutting immediately without a centre punch.
What shank standard does the 3/8 inch jobber bit use and what does it limit?
It has a straight 3/8 inch shank that fits any three-jaw chuck rated for that capacity.
What physical clearance does the 44924 jobber length need to fit in a machine?
The jobber length requires enough spindle travel and workpiece depth to accommodate its full flute and overall length.
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