CP797 1" Classic HD Impact Wrench

impact wrench with ergonomic grip and 1400 ft.lbs torque for truck and equipment repair

Heavy-Duty Impact Wrench for Fleet and Equipment Work

The CP797 impact wrench from Chicago Pneumatic is built for one job: taking on the heaviest fastening and loosening tasks in commercial trucking, heavy equipment repair, and industrial maintenance. With 1400 ft.lbs of reverse torque, this 1-inch air impact gun delivers the power needed to free rusted bolts and tackle high-torque fasteners without hesitation.

Need a power wrench that won’t stall under pressure? The CP797 shines where others fail. From busting lug nuts on semi-trucks to servicing bulldozers, it's the trusted tool when reliability and brute torque matter most.

What Makes This Impact Wrench Different?

Many 1" impact guns promise power, but the CP797 delivers it with proven durability. Its rocking dog clutch offers smoother engagement than twin-hammer designs in harsh, high-cycle environments. You’ll notice the reduced kickback immediately, especially important when working long shifts or on elevated platforms.

  • Rocking dog clutch resists shock loads and extends tool life
  • Ergonomic D-handle helps maintain control even in awkward positions
  • Convenient reverse valve and teasing throttle give precise trigger control

How This Impact Wrench Performs on the Job

Expect consistent, unrelenting torque with each trigger pull. The CP797 makes quick work of seized fasteners, large frame bolts, and stubborn truck wheels. Its weight (27 lbs) balances well in-hand, reducing wrist fatigue on vertical or overhead work. At 15.5 inches long, it fits tight wheel wells and axle clearances better than many bulkier competitors.

  • Best-in-class torque for disassembly, repair, and rebuild applications
  • Quick directional changes make jobs faster and safer

Who Is This Impact Wrench For?

Ideal For:

  • Fleet service techs handling truck and trailer repairs
  • Heavy equipment mechanics in construction or mining
  • Shops that need consistent torque for daily high-load tasks

Specifications

Drive Size 1"
Max Reverse Torque 1400 ft.lbs (1898 Nm)
Working Torque Range 150 - 900 ft.lbs
Tool Length 15.5 inches
Weight 27 lbs

Why It's Worth Buying an Impact Wrench Like This

If you need an impact wrench that doesn’t flinch under load, the CP797 is it. From a brand trusted by pros since 1901, this tool is engineered to outlast the job, shift after shift. It's more than a torque tool, it’s your daily go-to for demanding, no-fail work.

Get reliable impact wrench power shipped fast, built for tough jobs.

About the Brand

Chicago Pneumatic

View All Chicago Pneumatic Products

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