KIT INCLUDES THE MOST POPULAR COMPONENTS AND ACCESSORIES UTILIZED BY UTILITY WORKERS. FEATURES THE POWERFUL UTILITY AIRSPADE 4000 AIR-EXCAVATION TOOL EQUIPPED WITH PATENTED NICKLE ALUMINUM BRONZE NON-SPARKING SUPERSONIC NOZZLE FOR SUPERIOR DIGGING. COMMON APPLICATIONS INCLUDE ELECTRIC POWER LINES GAS PIPES WATER & SEWER LINES TELECOMMUNICATIONS LINES & FIBER OPTICS. MEETS REGULATION SAE 100R7. NOZZLE THREAD SIZE 1-1/8 - 12 UNF - 1B. EXIT OD(IN) 1.0. INLET CONNECTION (IN) 3/4. AIR CONSUMPTION/USAGE (CFM) 175-185. SOIL EXCAVATION RATE (CUBIC FT./MIN) 1.2 - 1.8. FLOW (CFM) 150. NOISE LEVEL (DB) 122