EMX1141 Features: * Air hammer * Advanced vibration dampening design combined with high-impact composite handle produces 30pct less vibration and fatigue * Ergonomic handle design with TPR anti-vibration grip for maximum comfort and control * Internal cylinder, piston and impact parts heat treated for extended life * Internal muffler minimizes air exhaust sound * Quick change spring retainer for fast / efficient tool change * Blows per minute: 3000 BPM * Average air consumption: 14 CFM * Shank diameter: 0.4 * Minimum air hose size: 0.38"" * Air pressure: 90 PSI Includes: * Includes: (1) Quick-change spring retainer, (1) 0.25"" diameter ""Male plug"" air coupler Construction: * Industrial ball bearing construction Specifications: * Decibel rating: 97 DBA Dimensions: * Piston stroke length: 2.79"" * Dimension: 9"" W Warranty: * Limited lifetime warranty