Chicago-Latrobe
Chicago-Latrobe 45616 135 Degree Heavy-Duty Jobber Length Drill Bit
A 1/4 inch high-speed steel jobber drill bit with a 135 degree split point for accurate starting
- TypeDrill Bits
- MaterialHAWA
- 135-degree split point starts drilling on contact without walking
- High-speed steel construction resists wear during repetitive jobs
- Black oxide finish reduces friction and chip welding
- Jobber length reaches standard depths in one pass
- 1/4-inch fractional size matches common chuck capacities
Chicago-Latrobe 45616 Drill Bit
The Chicago-Latrobe 45616 is a jobber-length drill bit built for general-purpose drilling in metal, wood and plastic. Its 135-degree split point reduces walking and starts holes cleanly without a centre punch. The high-speed steel body with black-oxide finish resists wear and corrosion during repeated use.
Suits Handheld And Press Drilling
Machinists, maintenance technicians and DIY users who need a reliable 1/4-inch bit for portable drills or drill presses will find this a dependable choice. The split-point geometry helps when starting on curved or hardened surfaces. Buyers who require coolant-through capability or a different point angle should look at other options.
135-Degree Split Point Geometry
The 135-degree split point is the specification that determines whether this bit matches the application. It centres itself on contact and requires less thrust than standard points, making it effective for harder materials. The fractional 1/4-inch size and decimal equivalent .2500 confirm the exact diameter for the job.
Highlights
- 135-degree split point starts drilling on contact without walking
- High-speed steel construction resists wear during repetitive jobs
- Black oxide finish reduces friction and chip welding
- Jobber length reaches standard depths in one pass
- 1/4-inch fractional size matches common chuck capacities
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
Will the 135-degree split point on the 45616 bit start cleanly in the 1/4-inch holes my older drill press already makes?
The 135-degree split point is designed to self-centre and reduce walking, so it should engage accurately in existing 1/4-inch holes without a centre punch.
How can I confirm the 45616 bit is cutting correctly once installed?
A properly cutting bit produces a continuous chip, steady feed pressure, and a clean 0.2500-inch diameter hole without excessive heat or chatter.
Does the 45616 package include any coolant accessories or only the black-oxide high-speed-steel bit?
The bit is non-coolant-through with zero coolant holes, so only the drill bit itself is supplied; cutting fluid or mist systems must be purchased separately.
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