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Our products / Power tools / Classic / Products / CP7778 Classic - 1” straight impact wrench

CP7778 Classic - 1” straight impact wrench


The Chicago Pneumatic CP7778 is a durable & powerful 1” impact wrench range, including the CP7778 and the CP7778-6 with a 6-inch extension. The CP7778 offers the best power to weight ratio of the 1” straight impact wrenches available in the CP Classic range. It’s a performing and very reliable tool for tire work on trucks, general maintenance on heavy vehicles and light industrial maintenance.

CP7778
  • Rocking dog clutch for smooth operation and extreme durability
  • Angled down exhaust blows air away from the operator
  • Convenient use with full teasing trigger, power regulator and multi-position side handle.
  • Choice of professional mechanics for high volume tyre work on trucks, buses and heavy equipment
  • Ultimate Torque: 1900Nm (1,450ft.lbs)

  Open table
  CP7778CP7778-6 - CP7778SP-6
Part Number89410777808941077786 / 8941077781
Square Drive [in.]11 / #5 spline
Working Torque Range [Nm (ft.lbs)]400-1800 (300-1,330)400-1800 (300-1,330)
Max. Torque@90PSI Rev. [Nm (ft.lbs)]2200 (1,620)2200 (1,620)
Free Speed [rpm]5,0005,000
Weight [kg (lb)]10.1 (22.2)11.5 (25.4)
Length [mm (in.)]355 (13.4)513 (20.2)
Avg. Air Consumption [l/s. (CFM)]4.1 (8.7)4.1 (8.7)
Air Inlet Thread Size NPTF [in.]1/21/2
Sound dB(A) Pressure117117
Vibration m/s2 (ISO-28927-2)11.210.1
Listed specifications are for reference only. Please check documents in each tool.
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