Chicago-Latrobe
Chicago-Latrobe 44416 118° Left-Hand Helix Jobber Drill 1/4 in
Left-hand helix jobber drill bit, 1/4 in diameter with 118° point angle for reverse drilling applications
- TypeDrill Bits
- MaterialHAWA
- Left-hand helix removes broken bolts easily
- 118° point angle starts holes accurately
- High-speed steel resists wear during drilling
- 1/4 inch fractional size fits standard chucks
- Bright finish prevents coating buildup in holes
1/4 in Jobber Drill with Left-Hand Helix
This 1/4 in jobber-length drill bit features a left-hand helix designed for removing broken bolts or studs. The 118-degree conventional point starts cleanly in metal without walking. It is made from high-speed steel with a bright, uncoated finish and suits general-purpose drilling in ferrous and non-ferrous materials.
Decimal Equivalent .2500 and 118-Degree Point
The fractional 1/4 in size matches a decimal equivalent of .2500 for precise hole sizing. The 118-degree point angle handles mild steel, aluminium and plastic comfortably. Hardened tool steels or abrasive alloys will dull the uncoated high-speed steel cutting edges more quickly.
Bright High-Speed Steel Construction
The bright finish leaves the high-speed steel surface uncoated, allowing easy resharpening on a bench grinder. A straight shank fits standard three-jaw drill chucks and quick-change adapters without special tooling. No coolant-through holes are present, so external lubrication is required for deeper holes.
Highlights
- Left-hand helix removes broken bolts easily
- 118° point angle starts holes accurately
- High-speed steel resists wear during drilling
- 1/4 inch fractional size fits standard chucks
- Bright finish prevents coating buildup in holes
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
Will the 1/4 in .2500 shank fit the 1/4 in chuck on my older drill press?
The shank is exactly .2500 in diameter, matching a standard 1/4 in chuck, so it seats without an adapter.
How do I confirm the 118 degree point is cutting correctly on first use?
The conventional point should produce clean chips and a round hole without walking; check chip shape and hole finish.
Does the 44416 jobber bit come with a case or lubricant, or must I buy those separately?
The bit is supplied alone; no case, coolant or lubricant is included, so purchase those separately if needed.
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