Chicago-Latrobe
Chicago-Latrobe 46795 135 Degree Cobalt Jobber Length Drill Bit
A 135-degree split-point cobalt jobber drill bit sized Y (.4040) for heavy-duty drilling
- TypeDrill Bits
- MaterialHAWA
- 135-degree split point reduces walking on hard metals
- Cobalt steel resists heat during high-speed drilling
- Jobber length suits standard drill chucks
- .4040-inch diameter matches letter Y sizing
- Straw bronze finish indicates heat-treated hardness
Chicago-Latrobe 46795 Cobalt Jobber Drill Bit
This Chicago-Latrobe 46795 is a new heavy-duty jobber length drill bit made from HAWA cobalt material. It features a 135 degree split point designed for efficient drilling in tough metal applications. The straw/bronze finish identifies the cobalt construction for professional workshops.
Suited for metalworkers needing a 135 degree split
Machinists and fabricators drilling hard steel or stainless alloys will benefit from the split point geometry that reduces walking. Buyers who require a coolant-through design with internal holes for fluid delivery should look elsewhere as this bit has zero coolant holes. Users needing a different point angle or standard high-speed steel construction will not find those features here.
Drill bit size Y with .4040 decimal equivalent
The single specification that determines fit is the letter size Y, which corresponds to a .4040 inch decimal diameter. This exact size must match the hole requirement for the fastener or reaming operation planned. No other diameter or letter designation applies to this specific 46795 model.
Highlights
- 135-degree split point reduces walking on hard metals
- Cobalt steel resists heat during high-speed drilling
- Jobber length suits standard drill chucks
- .4040-inch diameter matches letter Y sizing
- Straw bronze finish indicates heat-treated hardness
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
How do I install the 135-degree split-point drill bit and what step is often missed?
Chuck the 0.4040-inch cobalt bit securely in the drill, align the split point on the centre mark, and apply steady pressure; the step many skip is using a centre punch so the split point does not wander.
What maintenance or replacement will the cobalt jobber bit need later?
The cobalt material resists heat, but the cutting edges will dull; resharpen the 135-degree split point on a proper grinder or replace the bit when holes become oversized or rough.
What limit appears first during sustained drilling with this bit?
Heat buildup in the workpiece and bit is the first limit; the non-coolant-through design means you must pause frequently or use cutting fluid to prevent the straw-bronze surface from overheating.
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