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Chicago-Latrobe #57 extra-long HSS drill bit, black oxide finish, split point

Chicago-Latrobe

Chicago-Latrobe Extra Long Drill Bit #57 HSS 11181 135° Split Point

SKU CH-N7GM-VV853

Extra long HSS drill bit in size #57 with a 135° split point for precise starts and black oxide finish

  • Product typeDrill Accessories
  • Main materialHAWA
  • Drills deep holes with 4xD extra length
  • Starts precisely with 135° split-point geometry
  • Cuts hard materials using high-speed steel
  • Resists wear through black-oxide finish

Chicago-Latrobe #57 HSS Extra Long Drill Bit

This Chicago-Latrobe drill bit is a high-speed steel accessory sized #57 with a 135-degree split point. The black oxide finish and 28-degree helix support chip evacuation in deep holes. It is made from machining-grade high-performance steel for extended tool life.

Suited for precision wire-gauge drilling in metal

Machinists needing a rigid, extra-long bit for #57 wire-size holes will appreciate the split-point start and 4xD reach. Buyers who require a larger diameter, a different point angle, or a shorter jobber-length bit should select another tool.

How it compares

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

Price $9.99
Cheaper than about 88% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameChicago-Latrobe
Product typeDrill Accessories
Size & build
Main materialHAWA

Questions about this item

What size drill chuck is required for the #57 shank on this extra-long bit?

A standard 1/4-inch or 3/8-inch three-jaw chuck will grip the #57 wire-gauge shank; the bit is made from high-speed steel with a black-oxide finish.

Will the 135° split point start cleanly in the harder alloys I already drill with shorter bits?

Yes, the 135-degree split point is designed for self-centring in tough materials, and the high-performance machining grade handles the same alloys as your existing HSS tooling.

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