Ingersoll Rand Pistol Grip Needle and Chisel Scaler features an adjustable bayonet type needle housing lock that allows adjustment without special tools. These pneumatic needle scalers are precision heat treated for maximum performance. These air tools feature a rubber faced throttle valve to ensure positive sealing of internal components along with a strengthened head block that will hold up in tough conditions. The components were rigorously tested by industry experts to achieve the required precision pertaning to the task at hand. Their ergonomically designed tools help operator feel at ease during longer working hours that results in reduced fatigue throughout the day. These Pneumatic Air Needle and Chisel Scaler tools meet the required industrial regulatory standards.