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Impact Wrench


Groz Impact Wrenches are precision-engineered tools crafted to handle the toughest fastening and loosening tasks in high-demand environments. These tools are specifically built to deliver exceptionally high torque output—far beyond what a conventional manual wrench can achieve—making them the ideal choice for tackling stubborn, rusted, or over-tightened bolts with ease.

Powered by either compressed air (pneumatic) or advanced lithium-ion battery (cordless) systems, Groz Impact Wrenches combine raw power with ergonomic handling, ensuring that users get efficient results with minimal strain and effort. The internal impact mechanism (often twin hammer or pin clutch) delivers rapid bursts of rotational force (impacts per minute), which break the bolt loose without damaging the fastener or surrounding components.

Impact Wrench Specifications

Specification 3/8" Impact Wrench 1/2" Impact Wrench 3/4" Impact Wrench 1" Impact Wrench D - Handle
Product Images 5 speed control 6 speed control 5 speed control 6 speed control
Construction Aluminium Aluminium Aluminium Aluminium
Mechanism Jumbo Hammer Twin Hammer Improved Twin Hammer Pin-less Clutch
Max Torque @155sec 360 Nm 1223 Nm 2522 Nm 2522 Nm
Free Speed 10,000 RPM 8,000 RPM 6,700 RPM 4,000 RPM
Exhaust Rear Exhaust Front Exhaust Rear Exhaust Side Exhaust
Air Inlet Size 1/4" 1/4" 1/4" 3/8"
Air Hose I.D. 3/8" 3/8" 3/8" 1/2"
Avg. Air Consumption 71 LPM (2.5 CFM) 113 LPM (4 CFM) 198 LPM (7 CFM) 238 LPM (8.4 CFM)
Max Nut Capacity M11 M16 M24 M38
Net Weight 1.35 KG 2.56 KG 4.75 KG 12.06 KG
Overall Length 5-1/2" (140mm) 6.7" (171mm) 9.2" (235mm) 20.3" (515mm)
Application
  • Tyre services & wheel alignment
  • Repair of white goods (fans, washing machines, etc.)
  • Maintenance & repair of passenger vehicles
  • Railways
  • Gear Units & Gear Boxes
  • Printing Press Machines
  • Assembly line of white goods
  • MRO jobs in oil & gas industry
  • MRO jobs in paper processing plants
  • Truck garages, construction & mining equipment where huge impact power is required
  • Erection & commissioning of heavy equipment in power plants, sugar mill, cement plants & steel mills
  • MRO jobs in shipping Wards
  • Routine maintenance of wind mills
Usage Intensity Intensive Intensive Intensive Intensive
Speed Control 5 speed control

5 speed position control

6 speed control

6 speed position control

5 speed control

3 speed positive control, full power in reverse

6 speed control

3 speed position control