Chicago-Latrobe
Chicago-Latrobe 44948 135 Degree Cobalt Jobber Drill Bit
A 135-degree split-point cobalt jobber drill bit with TiAlN coating for reduced walking and longer life
- TypeDrill Bits
- MaterialHAWA
- 135-degree split point starts on contact
- Cobalt steel with TiAlN coating resists wear
- Jobber length suits general drilling tasks
- Letter D size equals 0.2460 inch diameter
- Heavy-duty construction handles tough materials
Chicago-Latrobe 44948 Cobalt Drill Bit
This Chicago-Latrobe 44948 jobber-length drill bit is made from cobalt steel with a TiAlN coating for hard-metal drilling. The 135-degree split point reduces walking and starts holes cleanly in tough alloys. It is built for machinists and maintenance technicians who need reliable performance in stainless steel and other abrasive materials.
Suited for hard-metal drilling.
The cobalt construction and TiAlN finish excel in high-temperature cutting of hardened steel, cast iron and titanium. Buyers drilling wood, plastic or soft aluminium will not benefit from the added cost and should choose a standard high-speed steel bit instead. Non-coolant-through design limits use in deep-hole production runs requiring internal lubrication.
135-degree split point starts holes without
The .2460-inch diameter and 135-degree split-point geometry allow accurate hole placement on curved or hard surfaces without pilot drilling. This single feature determines whether the bit matches the precision and material demands of your application.
Highlights
- 135-degree split point starts on contact
- Cobalt steel with TiAlN coating resists wear
- Jobber length suits general drilling tasks
- Letter D size equals 0.2460 inch diameter
- Heavy-duty construction handles tough materials
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
How often will the TiAlN coating on this 44948 bit need replacement under heavy use?
The TiAlN coating is integral to the cobalt substrate and cannot be replaced separately; when cutting edges dull the entire bit is discarded.
What is the first limit reached when drilling continuously with the 135 degree split point?
Heat buildup in the cobalt body becomes the limiting factor before the split point geometry loses its self-centering ability.
How much noise and heat does the D size 0.2460 bit generate during all-day drilling?
Noise and heat depend on the drill motor and workpiece material; the bit itself adds no measurable sound or thermal output beyond normal cutting friction.
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