This air hammer utilizes pneumatic pressure to drive chisels, delivering thousands of blows per minute. - It is suitable for chipping, general sheet metal cutting, light vehicle exhaust work, scraping, and rivet or joint removal and separation. Shank Shape / Round Stroke Length / 2 1/4 in Air Inlet Size / 1/4 in NPT Female Blows per Minute / 3,000 bpm Shank Size / 0.401 in Air Inlet Gender / Female Air Inlet Type / NPT Air Inlet Connection Size / 1/4 in Compatible Collar Shape / Round Retainer Type / Chisel Power Source / Air Powered Air Consumption / 15 cfm Air Pressure / 90 psi Min. Hose Size / 3/8 in Material Application / Metal Vibration Level / 19.9 m/sq sec Sound Level / 111.3 dB Throttle Type / Trigger Overall Length / 7 5/8 in Shank Design / 0.401 Shank Handle Type / Pistol Grip Hammer Type / Chiseling Housing Material / Alloy Steel Features / Built-In Power Regulator Number of Pieces / 1 Tool Weight / 3.5 lb Series / 121 Series Standards / EN ISO 11148-4, EN ISO 15744, EN ISO 28927-10