Chicago-Latrobe
Chicago-Latrobe 50082 135° Cobalt Jobber Drill Bit 5/8 in
A 135° split-point cobalt jobber bit drills 5/8 in holes in hard metals
- TypeDrill Bits
- 135° split point reduces walking on hard metals
- Cobalt steel resists heat for longer edge life
- Jobber length gives standard reach for general drilling
- 5/8 in fractional size matches common bolt clearance
- Straw bronze finish identifies cobalt grade at a glance
Chicago-Latrobe 50082 Cobalt Drill Bit
This Chicago-Latrobe 50082 is a jobber-length drill bit made from cobalt steel for drilling hard metals. It measures 5/8 inch with a decimal equivalent of 0.6250. The 135-degree split point reduces walking and starts holes cleanly. It suits maintenance and fabrication tasks where tool life matters.
For metalworkers needing a single large bit.
Mechanics and fabricators drilling stainless or alloy steel will value the cobalt construction and split-point geometry. Buyers who need a range of diameters for progressive drilling should look at a set instead. The non-coolant-through design fits standard handheld and press operations. It is not suited for through-spindle coolant systems.
5/8 inch diameter with 135-degree split point
The 5/8 inch fractional size (0.6250 decimal) determines the hole this bit produces. The 135-degree split point controls how it engages the workpiece without a centre punch. Match these two figures to your drawing or tap chart before ordering. No other specification overrides this fit decision.
Highlights
- 135° split point reduces walking on hard metals
- Cobalt steel resists heat for longer edge life
- Jobber length gives standard reach for general drilling
- 5/8 in fractional size matches common bolt clearance
- Straw bronze finish identifies cobalt grade at a glance
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
Questions about this item
How does the 135-degree split point affect drilling performance?
The 135-degree split point centers the bit without a pilot hole and reduces walking on hard materials, giving cleaner entry in steel and alloy work.
What shank size does the 5/8-inch jobber bit need for a secure fit?
The bit has a straight shank matching its 5/8-inch diameter, so it requires a chuck that opens to at least .6250 inch for full grip.
What is the correct way to install this cobalt bit in a three-jaw chuck?
Open the chuck wide, insert the shank fully, then tighten each jaw evenly; the common mistake is tightening one jaw first, which leaves the bit off-center and causes run-out.
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