These flex locator receivers are used with AMWF-W series ball locking pneumatic flex locator pins for locating and fastening in a wide range of tooling, fixturing and assembly operations. When air pressure is applied, the balls retract into the pin, allowing the pin to be released from the receptacle. Locating repeatability is ±10 microns. The body is made from heat-treated 4140 steel with a black oxide finish.