Chicago-Latrobe
Chicago-Latrobe 44429 29/64 in Jobber Drill 118° Left-Hand Helix
A 29/64 inch high-speed steel jobber drill with a 118-degree left-hand helix and conventional point for reverse cutting applications
- TypeDrill Bits
- 29/64 inch fractional size fits precise drilling needs
- 118 degree conventional point starts holes cleanly without wandering
- Left-hand helix design removes chips effectively in reverse applications
- Bright high-speed steel construction resists wear during general-purpose use
- Decimal equivalent 0.4531 inch allows exact measurement matching
Chicago-Latrobe 44429 Jobber Drill 29/64 in
This Chicago-Latrobe 44429 jobber drill bit has a 29/64 in diameter and a 118 degree point angle. It is made from high speed steel with a bright uncoated finish. The conventional point design suits general purpose drilling tasks.
For machinists needing left-hand helix removal
The left-hand helix helps extract broken bolts or studs when run in reverse. It is not for buyers who need a right-hand spiral for standard forward drilling. It also lacks coolant holes so it does not suit high-volume production with through-coolant systems.
118 degree left-hand helix for reverse extraction
The 118 degree left-hand helix point is the specification that determines if this bit matches the job. It enables reverse rotation for fastener removal. Confirm the 29/64 in size and fractional inch requirement before purchase.
Highlights
- 29/64 inch fractional size fits precise drilling needs
- 118 degree conventional point starts holes cleanly without wandering
- Left-hand helix design removes chips effectively in reverse applications
- Bright high-speed steel construction resists wear during general-purpose use
- Decimal equivalent 0.4531 inch allows exact measurement matching
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
Questions about this item
How deep can the 29/64 in jobber drill go before chip clearance becomes the limiting factor?
The jobber-length flute is designed for standard drilling depths in that diameter; chip packing becomes the practical limit once the hole exceeds roughly five times the 29/64 in size.
Does the bright high-speed steel 118° left-hand helix run hotter or louder than a coated right-hand bit in all-day use?
The uncoated bright finish and conventional 118° point generate more friction heat and a slightly higher pitch than coated or parabolic-flute bits during continuous drilling.
What shank size must my drill chuck accept to hold this 29/64 in bit?
The bit uses a straight round shank matching its 29/64 in (0.4531 in) body diameter, so the chuck must open to at least that size.
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