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By certification 
Chinacoal07 NST-500M Impact Wrench, Mini Twin Hammer Air Impact Wrench, Pneumatic Tool 1/2'' Mini Twin Hammer Air Impact Wrench
Periodic Maintenance And Inspection:
Keep tools properly lubricated to prevent wear and rust
Clean clutch lubricant regularly,generally a 3/8'' air wtool should have 3/8'' oz. of lubricant for its clutch mechanism.
When rools are not in use,clean and lubricate them,then store them in a clean and dry place.
Always use safety googles or a face shield when operating air tools.Never wear loose clothing that might get caught in the tool and cause injuries.
While installing whio hoses or quick coupler directly into the tool,use a liquid pipe selant to prevent damage to the housing from damage.
Model Square drive Capacity bolt size Free speed Max. torque Air inlet(PT) Air Hose Avg.Air Counsumption Working Pressure Length*Height Weight
NST-500M 1/2'' in mm rpm ft-lb/N-M 1/4'' 3/8'' SCFM Psi Kg(Bar) in mm Kgs/Lbs
5/8 16 10,000 500/680 5.8 90 6.3 7.09''*5.12'' 180*130 1.61/3.56
Periodic Maintenance And Inspection:
Keep tools properly lubricated to prevent wear and rust
Clean clutch lubricant regularly,generally a 3/8'' air wtool should have 3/8'' oz. of lubricant for its clutch mechanism.
When rools are not in use,clean and lubricate them,then store them in a clean and dry place.
Always use safety googles or a face shield when operating air tools.Never wear loose clothing that might get caught in the tool and cause injuries.
While installing whio hoses or quick coupler directly into the tool,use a liquid pipe selant to prevent damage to the housing from damage.
Model Square drive Capacity bolt size Free speed Max. torque Air inlet(PT) Air Hose Avg.Air Counsumption Working Pressure Length*Height Weight
NST-500M 1/2'' in mm rpm ft-lb/N-M 1/4'' 3/8'' SCFM Psi Kg(Bar) in mm Kgs/Lbs
5/8 16 10,000 500/680 5.8 90 6.3 7.09''*5.12'' 180*130 1.61/3.56
