19/64 x 18 in high-speed steel extra long drill bit

Drill America ★ 3.9/5 · ItemOracle Score Budget

$36 USD
Price subject to change
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Drill America 19/64" x 18" High Speed Steel Extra Long Drill Bit, DWDDL Series

High-speed steel drill bit with extra length for reach. Features black oxide for lubricity and coolant pockets near the edge; round shank for versatile toolholding. Customers note long flute length but mixed durability and sharpness

Highlights

  • extra-long length
  • black oxide lubricity
  • round shank versatility

Pros

  • high-speed steel construction
  • black oxide coating for lubricity
  • extra-long reach for deep drilling
  • round shank for versatile toolholding

Cons

  • mixed durability reports
  • some users find it dull or prone to breaking
  • mixed drilling accuracy feedback

Best For

  • deep-hole drilling
  • metalworking projects requiring extended reach
  • general-purpose drilling with long flute
  • applications needing coolant-pocket lubrication
  • counterclockwise/right-hand cut operations

Features

  • High-speed steel tools are good for most general purpose applications
  • offering a combination of hardness and toughness for wear resistance
  • Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
  • Round shanks allow use with a wide variety of toolholding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • For general purpose drilling in applications where extra length for reach is required
  • designed to perform in a broad range of materials in the iron and steel families.

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