The valved design of the Dominator 20 provides high performance at low pressure. A non return valve is fitted to prevent flooding when drilling in water. The Dominator 20 has a strong robust design to withstand heavy duty applications.
The Dominator 20 is fitted with adjustable chokes to give three levels of air volumes for different drilling conditions.
Dominator 20 shank has a long service life and reduces contact stresses and wear rates.