Harbor Freight Tools


1/2 in. Professional Reversible Air Drill

Lightweight, versatile and ideal for a wide range of uses, this reversible air drill offers high torque and professional performance to take on heavy duty jobs.

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CHICAGO PNEUMATIC CP9789 at $231.44 Save $151.45

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Product Overview

With a lightweight composite body, this versatile reversible air drill is ideal for a wide range of uses. Offering high torque and professional performance with its double planetary drive for heavy duty applications, one-handed forward/reverse operation for convenience and adjustable side handle for added control.

  • Delivers high torque for professional performance
  • Double planetary gear drive providing added power for heavy duty applications
  • One hand forward/reverse operation for convenience
  • Precision-ground 1/2 in. industrial keyed chuck
  • Adjustable side handle for added control
  • Ideal for a broad range of applications: drilling, honing, hole sawing and reaming

Important Information

  • Harbor Freight’s CHIEF products are not endorsed by or affiliated with Chief Automotive Technologies, Vehicle Services Group, LLC, or their affiliates.


Recommended hose size (in.)
3/8 in.
Air inlet size
1/4 in-18 NPT
Average air consumption
4 CFM @ 90 PSI
Chuck size (in.)
1/2 in.
Speed (max)
850 RPM
Product Height
5-5/8 in.
Product Length
7-3/4 in.
Product Weight
3.1 lb.
Product Width
1-11/16 in.
Shipping Weight
3.75 lb.
Working pressure (psi)
90 PSI
Sound rating (dB)
90 dB
Note: Specifications are approximate and subject to change


We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.