Pistol Grip Air Hammer

HP4540 
Suitable for use with cutters, punches, spot weld breakers and flat chisels. Supplied with retainer spring. Accepts all standard 0.401" shank tools. 

Specifications:
1/4?? NPT air inlet thread for 10mm air hose. 
90PSI air pressure. 
4CFM* air consumption.
Overall length: 145mm. 
Stroke length: 40mm. 

*Based on a 15 second cycle per minute average use.