Chicago Pneumatic CP7731C 3/8" STUBBY IMPACT WRENCH-COMPOSITE | 8941077311

Chicago Pneumatic

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  • Chicago Pneumatic CP7731C 3/8" STUBBY IMPACT WRENCH-COMPOSITE | 8941077311 Main Image
  • Chicago Pneumatic CP7731C 3/8" STUBBY IMPACT WRENCH-COMPOSITE | 8941077311 Main Image


CP7731C - Ultra Compact & Powerful


  • Best power to weight ratio: 346 ft-lbs / 470 Nm
  • Ultra compact
  • Easy to use
  • Durable
  • Features

  • 2.1 lbs. – 1.0 Kg
  • 346 ft.lbs - 470 Nm of maximum torque in reverse
  • 4 1/4 in – 107 mm length
  • Jumbo hammer mechanism
  • Steel motor
  • Aluminum clutch housing
  • Composite housing with curved handle with Thermo-Plastic Rubber injected
  • S2S: 1 hand Forward – Reverse operation
  • New power setting system: 1 hand-operation behind the trigger
  • 2 positions in reverse: max and lower torque
  • 2 positions in forward: max and low torque
  • Socket retainer ring
  • Full teasing trigger

  • Part number8941077311 
    Handle typePistol 
    Square drive3/8"
    Working Torque Range (fwd)83-392 Nm61-289 
    Working Torque Range (fwd)61-289 ft.lbs83-392 
    Maximum Torque (reverse)469 Nm345 ft.lbs
    Maximum Torque (reverse)345 ft.lbs469 Nm
    Free speed9000 rpm
    Net weight2.2 lb1 kg
    Net weight1 kg2.2 lb
    Power/weight ratio470 Nm/kg157
    Power/weight ratio157 Nm/kg
    Length4.2"108 mm
    Length108 mm4.2"
    Average air consumption4.2 cfm
    Average air consumption2 l/s4.2 cfm
    Actual air consumption16.7 cfm
    Actual air consumption7.9 l/s16.7 cfm
    Air inlet thread size0.25 "
    Min. hose size10 mm3/8"
    Min. hose size3/8"10 mm
    Sound pressure92.8 db(A)
    Sound Power103.8 db(A)
    Vibration α (ISO-28927-2)10.33 m/s²
    Vibration K (ISO-28927-2)1.38 m/s²
    Socket retainerFriction ring 
    Clutch typeSingle dog clutch 
    Box dimensions175*202*75 6.89*8*3
    Box dimensions6.89*8*3175*202*75 

    A Genuine Chicago Pneumatic product. For more information on this item or to order, please call Zampini Industrial Group at 1-800-353-4676.

    Established in 1901, Chicago Pneumatic Tools offers hundreds of quality air tools designed for a wide range of maintenance and production applications: impact wrenches, ratchet wrenches, screwdrivers, drills, grinders, sanders and polishers, cutting tools, and a whole lot more. Based on decades of expertise in providing the right tools, compressors or construction equipment for the toughest demands, CP understand the needs of the professionals for maintaining and repairing heavy equipment and machinery on-site or off-site.

    Zampini Industrial Group is proud to be a premier online supplier of Chicago Pneumatic Tools, and our numerous years representing the CP brand has provided us with a wide range of valuable application experiences that we use to help you get the perfect CP tool for your job!

    Zampini Industrial Group is a proud Chicago Pneumatic Distributor

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