Transition easily between industrial level pneumatic drive sizes with the STEELMAN 60562 1-Inch Square Drive (Female) to #5 Spline (Male) Drive Impact Adapter. The 1-inch drive end fits onto the drive end of 1-inch drive impact wrenches and the #5 spline drive end of the adapter then allows the use of that size's slip resistant sockets and accessories. Forged from heat-treated chromoly steel, this tool has the durability and resilience needed for heavy-duty use in any environment, from the truck repair bay to the industrial assembly line. The female end of the adapter has a cutout for a spring-loaded ball detent or locking pin to help securely grip the adapter onto extensions and wrenches during use to prevent them coming loose before the job is done. The attractive black oxide finish supplies rust and corrosion resistance to the tool. Laser etched size callouts and markings are burned directly into the steel and will not rub off or wear away like printed or painted on markings.