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57/64" x 12" HSS drill bit with 1/2" shank

Drill America ★ 3.6/5 · ItemOracle Score Mid-Range

$89 USD
Price subject to change
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Drill America 57/64" x 12" HSS Extra Long Drill Bit with 1/2" Shank

HSS extra-long drill bit for general purpose drilling requiring reach. Features black oxide surface for lubricity and coolant retention near the cutting edge. Customers note sharpness and quality, with mixed durability and accuracy feedback

Highlights

  • extra-long length for reach
  • black oxide coating for lubricity
  • versatile for broad iron/steel materials

Pros

  • high-speed steel tooling
  • extra-long reach
  • black oxide surface for lubricity
  • round shank compatibility

Cons

  • mixed durability reports
  • inconsistent accuracy with thicker materials
  • some instances of bending

Best For

  • long-reach drilling in iron/steel families
  • general purpose drilling in hard-to-reach areas
  • drilling through boards with extended reach
  • applications needing coolant-retaining edge proximity
  • drill jobs requiring compatible toolholding with round shanks

Features

  • 57/64" diameter, 12" length with 1/2" shank for extended reach
  • High-speed steel provides general purpose hardness and toughness
  • Black oxide coating reduces friction and aids coolant retention at cutting edge
  • Round shank compatible with a wide range of toolholding systems
  • Right-hand cut with spiral flutes evacuates chips to minimize clogging

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