90 Degree Angle Air Drill is designed to operate on a speed of 2,800 RPM. The Air Drill comes in threaded version with a spindle size ranging from ¼ inches to 28 inches. The Air Drill is capable of operating under air pressure ranging up to 90 PSI. The 90 Degree Angle Air Drill is available in the length of 10 inches or 254 mm.