* Designed to easily torque the fuel injector lines correctly, reducing if not eliminating the possibility of a fuel leak or damaging the line, fuel rail or fittings 
* Easily applies the factory required torque of 30 ft-lb 
* No torque adaptors with complicated calculations required 
* Use on Cummins ISB engines 1998 to present 
*  19mm&22mm  , 3/8" drive