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DeWALT DWA1789IR 7/8-Inch-1-1/8-Inch Impact Ready Step Drill Bit


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Item Number: DWA1789IR

Retail Price: $95.29

Our Price: $59.99

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The DEWALT DWA1789IR 7/8-Inch-1-1/8-Inch impact ready step drill bit that has the tip ground down to a different diameter than its base. The transition between the two forms an angled, countersink like bit. Step bits are extremely versitile drill bits and allow the user to custom size a hole in metal with one drill bit.

The DWA1789IR Features

  • Titanium two flute spiral design provides longer life and better chip removal
  • Split point tip increases speed
  • Laser engraved numbers increases step visiblity
  • 1/4′ hex shank
  • Optimized for impact driver usage
  • Works with rotary drills


  • Diameters: 7/8, 1-1/8.
  • Dimensions: 6 x 2.9 x 1.1 inches
  • Impact Rated
  • Shank Diameter: 1/4 Inch Hex


  • Set includes (1) 7/8, 1-1/8 drill bits.

Customer Reviews
  • Item Number: DWA1789IR
  • Retail Price: $95.29

    Our Price: $59.99
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