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Bright high-speed steel jobber drill bit, 29/64 inch, 118-degree left-hand helix

Chicago-Latrobe

Chicago-Latrobe 44429 29/64 in Jobber Drill 118° Left-Hand Helix

SKU CH-32E8-49DVR

A 29/64 inch high-speed steel jobber drill with a 118-degree left-hand helix and conventional point for reverse cutting applications

  • Product 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.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 68% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill 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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