SUPERIOR VALUE: Low maintenance and less downtime, tool-free needle changeover, and air-powered LIGHTWEIGHT: Weighs only 5.75 lbs INCLUDES: - 2BPG Needle Scaler - 2BPG Chisel Holder Attachment -19 chisel-tipped needles (3 mm) - 3/4" square shank chisel, 1-3/8" x 7" angle sacaling chisel, and allen wrench - 100 additional needles APPLICATIONS: Convert from needle scaler to chisel scaler in seconds for chipping, scraping, cleaning, and more IDEAL FOR: - Cleaning and stress-relieving weld seams and joints - Texturing concrete - Removing coatings, corrosion, and other accumulated materials Blows per Minute: 3,000 CFM @ 90 PSI: 5.5 Noise Level dB(a): 113.3 Vibration Levels m/s2: 12.6