Dewalt 7/8", 1-1/8" IMPACT READY(R) Step Drill Bit DWA1789IR - main

7/8", 1-1/8" IMPACT READY(R) Step Drill Bit

  • Mfr # DWA1789IR

  • Zoro # G7417925

product price:  $78.29
/ea
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Key Features

Shank Diameter
1/4 in
Shank Type - Machining
Quick-Change Hex
Material - Machining
High Speed Steel
Finish - Machining
TiN
Overall Length
3 3/8 in
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Specifications

Product Information

MFR #
DWA1789IR
Zoro #
G7417925
UPC #
885911294096
Country of Origin
China

Dimensions

Shank Diameter
1/4 in
Overall Length
3 3/8 in
Size Range
7/8 in to 1 1/8 in
Drill Bit Sizes Included
7/8 in, 1 1/8 in
Step Thickness
7/8 in, 1 1/8 in
Maximum Hole Size
1 1/8 in
Minimum Hole Size
7/8 in
Number Hole Sizes
2
Maximum Drilling Depth
1 in
Shank Hex Size
1/4 in
Shank Length
1 in

Details

Item
Step Drill Bit
Shank Type - Machining
Quick-Change Hex
Material - Machining
High Speed Steel
Finish - Machining
TiN
Number of Flutes
2
Number of Pieces
1
Impact Rated
Impact Rated
Decimal Equivalent
0.875, 1.125
Cutting Direction
Right Hand
Measurement System
Fractional Inch
Primary Material Application
Steel
Step Increments
3/4 in
Drill Bit Point Type
Split Point
Flute Type
Spiral
For Tool Type
Rotary Drill

Description

The DEWALT DWA1789IR IMPACT READY Step Drill Bit is designed for drilling two hole sizes—7/8 in and 1-1/8 in—in steel and similar materials. Featuring a titanium nitride coating over high speed steel, this bit is made from high speed steel, suitable for cutting through metal.


Key Features of the DEWALT DWA1789IR IMPACT READY Step Drill Bit:

  • Step Sizes: Drills holes at 7/8 in and 1-1/8 in diameters with step increments of 3/4 in.

  • Titanium Nitride Coating: Features titanium nitride coating for wear resistance during use.

  • Material: Made from high speed steel, suitable for cutting through metal.

  • Split Point Tip: Facilitates starting on contact and may enable efficient drilling speeds.

  • Double-Spiral Flute Design: Assists with chip removal while extending tool life; features two flutes per bit.

  • Laser-Engraved Markings: Enhance visibility of size steps during operation.

  • Impact Rated & Compatibility: Built for use with both impact drivers and standard rotary drills; features a 1/4 in hex shank for secure fitment.

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