All models have air passage to continually cool the gear box; gears last longer. Pinion piloted on rotor to reduce run-out. Needle bearing assures proper shaft alignment. Dual wick lubrication system saturated with gear oil for extended gear life over 700 hours and this helps administer the right amount and keep the gear oil on the metal gears. Highest horsepower and torque levels of any similar competitive product. Ergonomic tool housing with comfortable soft-touch grip. Safety-lock throttle lever prevents accidental startup. Governor-controlled motor maintains speed under load. Sound level is the pressure measurement according to the method outlined in ISO regulation ISO-15744.
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