Supersonic Air Knife - Model HF

A high volume, lightweight tool which requires a larger compressor than the LT and the ST2. It will dig deeper and up to five times faster than the standard tool. This model works well in hard, compacted dirt. Large dirt shield provides operator with more protection from flying debris. Unit weighs 8.7 lbs and is constructed of aluminum. Operates on 125 PSI and 375 CFM.