The Impact wrenches series Ultra-compact Impactools™ stand out for their compactness and excellent quality. Designed for the most demanding applications. The design ensures great comfort, the Ingersoll Rand Twin Hammer impulse mechanism is the strongest, most durable and reliable mechanism in the industry. Ultra-sensitive button control, 3 forward power levels and full power in reverse. Power supply: Lubricated compressed air - Recommended pressure 6.3 Bar