CP7748K Air Impact Wrench | 1/2" | 920ft.lbs | 8940172308 | by Chicago Pneumatic

Chicago Pneumatic

Please Call For Pricing and Availability
Please Call For Pricing and Availability


CP7748K - Durable, Powerful & Ergonomic + Modular and Convenient

Part number8940172308 
Handle typePistol 
Square drive1/2"
Working Torque Range (fwd)102-786 Nm75-580 
Working Torque Range (fwd)75-580 ft.lbs102-786 
Maximum Torque (reverse)1250 Nm920 ft.lbs
Maximum Torque (reverse)920 ft.lbs1250 Nm
Free speed8200 rpm
Blows per minute1200 
Net weight4.6 lb2 kg
Net weight2 kg4.6 lb
Power/weight ratio625 Nm/kg200.4 ft.lb/lb
Power/weight ratio200.4 ft.lb/lb625 Nm/kg
Length7.8"200 mm
Length200 mm7.8"
Side to center38 mm1 1/2"
Side to center1 1/2"38 mm
Average air consumption6.2 cfm
Average air consumption3 l/s6.2 cfm
Actual air consumption25 cfm
Actual air consumption12 l/s25 cfm
Air inlet thread size0.25 "
Min. hose size10 mm3/8"
Min. hose size3/8"10 mm
Noise level93 db(A)
Sound Power104 db(A)
Vibration α (ISO-28927-2)10.1 m/s²
Vibration K (ISO-28927-2)2.34 m/s²
Socket retainerFriction ring 
Clutch typeTwin Hammer 


  • Can be transportable as a tool box
  • Removable foam insert to be placed in a rolling cabinet drawer
  • High quality composite case supplied a bi-material handle and composite latches
  • Most powerful tool on the market in its class: 922 ft.lbs / 1250 Nm of maximum real torque in reverse
  • Best price to performance/durability ratio
  • Lightweight due to composite housing
  • Contoured comfort grip handle instead of TPR injected in handle
  • Smooth Forward / Reverse Switch on back
  • Suited for all maintenance applications: Light vehicle tire changing, General maintenance on vehicles and MRO applications
  • Features

  • 3 Wheel Sockets included / 17 / 19 and 21 mm
  • 80 mm length, with anti-scratch protection, extra thin-walled for alloy rims, painted rims and polished cap nuts
  • High quality composite case supplied a bi-material handle and composite latches
  • 1/2" composite impact wrench
  • One handed forward/reverse
  • Full power in reverse: 922 ft. lb - 1250 Nm maximum real torque in reverse
  • 3 positions in forward: Low - 180 ft-lbs. / 245 Nm - Medium - 480 ft-lbs. / 650 Nm - High - 730 ft-lbs. / 990 Nm
  • Aluminum clutch and back housing
  • Friction ring socket retainer
  • Full teasing trigger
  • Curved to be more ergonomic, Smaller diameter to fit better in hand palm and to be optimum balanced
  • Handle with Thermo-Plastic Rubber injected in housing for a durable and comfortable grip; Resistant to most chemicals used in workshops
  • Twin hammer mechanism
  • 360degree swivel air inlet
  • Composite housing

  • For more information on the CP7748K impact wrench please call Zampini Industrial Group at 1-800-353-4676 and we will be happy to assist you.

    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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