Ingersoll Rand 4-1/2' Angle Air Grinder - 12000 RPM - 0.88 HP - 5/8-11 Thread. The 3445MAX is the perfect choice for high performance material removal. This 4.5 In. air angle grinder combines the unique internal governor with a powerful 0.88 HP motor, to give you a best-in-class power to weight ratio grinder that will maximize your rate of material removal.
