Measurement Unit



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Durable, Powerful & Ergonomic + Modular and Convenient



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


3 Wheel Sockets included / 17 – 19 & 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 & 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
360° swivel air inlet
Composite housing
Measurement Unit
Part number 8940173407
Model CP7748-2K
Square drive 1/2"
Square drive 1/2"
Discontinued yes
Length 250 mm
Length 9.8"
Net weight 2.4 kg
Net weight 5.1 lb
Side to center 38 mm
Side to center 1 1/2"
Average air consumption 6.2 cfm
Average air consumption 3 l/s
Actual air consumption 25 cfm
Actual air consumption 12 l/s
Air inlet thread size 1/4"
Min. hose size 10 mm
Min. hose size 3/8"
Sound pressure 93 db(A)
Sound Power 104 db(A)
Vibration ISO ISO-28927-2
Vibration 10.1 m/s²
Vibration uncertainty (K) 2.34 m/s²
Handle type Pistol
Working Torque Range (fwd) 102 - 786 Nm
Working Torque Range (fwd) 75 - 580 ft.lbs
Maximum Torque (reverse) 1250 Nm
Maximum Torque (reverse) 920 ft.lbs
Free speed 8200 rpm
Blows per minute 1200 
Power/weight ratio 520.8 Nm/kg
Power/weight ratio 180.8
Socket retainer Friction ring
Clutch type Twin Hammer

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Tool documentation