Air Hammer, General, Shank Size 0.401 In., Coil Spring Retainer Shank Type, 2000 Blows per Minute, Stroke Length 3-1/2 In., Average CFM @ 15 Second Run Time 3, 14 CFM @ Full Load, Air Inlet 1/4 In., Min. Hose 3/8 In., Overall Length 10 In., Required Pressure 90 psi, Pistol Handle Type, Longer Stroke Piston, Alloyed Steel Barrel and Heat Treated Piston For Longer Life, Built In Regulator For Full Control RestrictionsNote: When operating a hammer, always be sure that the chisel is held securely against the work surface and is never allowed to "free fire", or allow the chisel to strike the retainer. Air HammersSuitable for chipping, general sheet metal cutting, light vehicle exhaust work, scraping, and rivet or joint removal and separation.Use 0.401" shank chisels and feature a spring-type chisel retainer Required pressure: 90 psi Air inlet: 1/4" NPT Min. hose size: 3/8"General-DutyFor automotive, general maintenance, or light construction. 5YAP5 is ergonomically designed to reduce vibration.