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Grizzly H8273 - Boring Bar - 5/16" Shank, Right-hand

Grizzly H8273 - Boring Bar - 5/16" Shank, Right-hand

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H8273 5/16" Shank, Right-Hand Boring Bar

Made to exacting specifications for rigidity and reach.

The H8273 Boring Bar works well for roughing and finishing.

It features flats on the shanks for holding the carbide inserts for a negative rake.

Inserts are not included. The T20668 Carbide Inserts for cast-iron and aluminum or the T20669 Carbide Inserts for steel, stainless, and cast-iron are available.

Uses hardened Torx® screw for securing inserts. Torx® wrench included.

The H8273 comes with a 1-year warranty assuring the set is free from factory defects.

The Grizzly Customer Service and Technical Support teams are U.S. based.


  • Overall Length: 4-15/16"
  • Shank: 5/16" Diameter
  • Bore Depth: 2"
  • Minimum Bore: 0.0354"
  • Hand: RH
  • Cutting Edge Angle: -5°
  • Bit type: Insert


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