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Chicago Pneumatic Air Impact Wrench — 1/2in. Drive, 3.7 CFM, 425ft.-Lbs. Torque, Model# CP734H
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Chicago Pneumatic Air Impact Wrench — 1/2in. Drive, 3.7 CFM, 425ft.-Lbs. Torque, Model# CP734H

Item# 11040

Only $179.99
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Manufacturer's Warranty: 12 months parts / 12 months labor

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Product Summary

This Chicago Pneumatic 1/2in. heavy-duty air impact wrench with Dyna-Pact oil bath clutch to deliver smooth operation and extended durability. Delivers power and economy for general repair, transmission work, exhaust systems and body shops.

Features + Benefits

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  • One-hand pushbutton forward/reverse power regulator
  • 4 positive power settings
  • Ultimate power in reverse
  • Handle exhaust with 360° air inlet swivel
  • Applications: Overall automotive service, body shop, farm, light truck work, etc.

Key Specs

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Item#11040
Ship Weight6.0 lbs
Drive (in.)1/2
Speed - No Load (RPM)8,400
Average Air Consumption (CFM)3.7
CFM at Load15
Working Torque (ft.-lb.)25–310
Max. Torque (ft.-lbs.)425
Max. Reverse Torque (ft.-lbs.)425
Variable SpeedYes
ReversibleYes
Standard Bolt Capacity (in.)9/16
Inlet Size (in.)1/4
Min. Hose Size (in.)3/8
Tool Weight (lbs.)5.1
Tool Length (in.)7 1/2

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Extended Warranty

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Service Protection Plus

Manufacturer Warranty:
12 months parts / 12 months labor

Protect your purchase beyond the manufacturer's warranty
with Service Protection Plus!

DESCRIPTION (Click More Info for details) 1 Year Extension 2 Year Extension
Extended Warranty Replacement Plan
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Extended Warranty + Accidental Damage Replacement Plan
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Hide Similarities
Drive (in.)
1/2 1/2 1/2 1 3/4
Speed - No Load (RPM) 8,400 8,000 9,000 3,200 4,500
Average Air Consumption (CFM) 3.7 4 4 8.7 7.8
CFM at Load
15 4.5 4.3 8.7 7.8
Operating PSI
- 90–120 90–120 90 90–120
Working Torque (ft.-lb.) 25–310 200–900 200–950 2,300 200–1,200
Forward Torque (ft.-lbs.) - - 200–950 2,300 -
Max. Torque (ft.-lbs.) 425 1,295 1,295 2,300 1,400
Nut Busting Torque (ft.-lbs.) - - - 2,300 -
Max. Reverse Torque (ft.-lbs.) 425 - 1,295 2,300 -
Impacts Per Minute (IPM) - 950 under load 1,400 400 -
Hammer Mechanism - Twin clutch Twin Pinless Twin
Variable Speed
Yes No Yes Yes Yes
Reversible Yes Yes Yes Yes Yes
Standard Bolt Capacity (in.) 9/16 - 3/4 1.72 -
Inlet Size (in.) 1/4 1/4 1/4 1/2 1/4
Min. Hose Size (in.) 3/8 3/8 1/4 1/2 1/4
Noise Level (dB)
- 86 85 118 89
Tool Weight (lbs.) 5.1 4 1/2 4.5 37 12.28
Tool Length (in.) 7 1/2 8 1/4 7.5 24 8.93
Case Included - No No Yes No