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Our own developed N-type clutch system resolved all the weak points of conventional impact wrench.


  • Stable stroke...........Improved uneven stroke which conventional tool has.
  • Compact & light weight..Much compact size compare with conventional tool and less air consumption too.
  • Stabled lubrication function..Grease dosen't fly off from necessary portion.
  • Better durability.......No jumping action of part like conventional wrench.Torque power doesn't deteriorate for a long period.


  • U-bolt setting work for medium/large truck.
  • Tyre setting work of heavy truck or bus.
  • Assembly/disassembly work of construction machinery and bulldozer.

Catalogue (PDF)


Drive size 1 in. 25.4 mm
Capacity (bolt size) 1-3/4 in. 45.0 mm
Recommended torque range 740-1,810 ft-lb 1,000-2,450 Nm
Weight (w/o socket) 22.7 lbs. 10.3 kg
Length (w/o socket) 10-11/16 in. 270.0 mm
Max trque 2,040 ft-lb 2,750 Nm
Free speed - 3,700 r.p.m.
Impact per min. - 700 i.p.m.
Air consumption (Normal) 27.5 c.f.m. 0.78 m³/min
Hose size 1/2 in. 12.7 mm
Anvil Length(KW-4500P) 1-1/2 in. 37.0 mm
Anvil Length(KW-4500P-6) 4-3/4 in. 120.0 mm
Performance figures are at 0.62MPa(Pe) (90P.S.I.) air pressure.

Outline View (PDF)

Appearance and specifications are subject to change without notice.
We appreciate your understanding.

Other Disclaimer

Parts List

You can download the parts list of current production.

Catalog Request,Contact US


3-6-15,Nonoue Habikino-Shi,Osaka,583-0871 KUKEN Co.,Ltd.

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