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Chicago-Latrobe 77645 1/8 inch HSS jobber drill bit with black and gold finish

Chicago-Latrobe

Chicago-Latrobe 77645 1/8" HSS Black/Gold 118 Deg Jobber Drill Bit

SKU CH-XCJY-J0WNJ

A 1/8 inch high-speed steel jobber drill bit with a 118-degree conventional point and black-and-gold finish

  • Product typeDrill Bits
  • 1/8 inch diameter for precise holes
  • High-speed steel construction resists wear
  • 118-degree point angle starts cleanly
  • Bright finish reduces friction during drilling
  • Jobber length suits general-purpose applications

Chicago-Latrobe 77645 1/8" HSS Jobber Drill Bit

This Chicago-Latrobe 77645 jobber drill bit is a 1/8 inch high speed steel cutting tool with a conventional 118 degree point. It features a bright uncoated finish and a decimal equivalent of .1250 inch, designed for general purpose drilling tasks in a workshop or maintenance environment.

Suitable for general purpose drilling in mild

Machinists needing a split point for self-centering or a coated bit for extended life in high volume production should look elsewhere. The conventional point and bright finish limit performance in hardened alloys or abrasive materials where specialised geometry or surface treatments are required.

118 degree conventional point angle determines

The 118 degree point angle is the critical specification that defines this bit for general purpose use rather than specialised applications. Buyers must match this angle to their material and machine setup to ensure proper chip formation and hole accuracy.

How it compares

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

Price $18.99
Cheaper than about 66% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits

Questions about this item

How does the 118-degree point angle affect drilling performance?

The 118-degree conventional point provides a strong chisel edge that centres quickly in steel and cast iron, reducing walk and giving clean holes in general-purpose work.

What does the .1250 decimal size mean for chuck compatibility?

The .1250-inch diameter fits any standard three-jaw chuck rated for 1/8 inch or 3 mm capacity, so it mounts directly in most corded and cordless drills.

What shank style does the jobber-length bit use for secure mounting?

It has a straight round shank matching the .1250-inch drill diameter, allowing a firm grip in drill chucks without the need for reduced-shank adapters.

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