Makita® Shoulder Pin 5 is designed for GA6010Z 6" 10.5 A cutoff/angle grinder, GA5020 5" 10.5 A super joint system angle grinder, GA5010Z 5" 10.5 A angle grinder, GA5020Y super joint angle grinder, PC5000C, PC5001C concrete planers and GA6020 6" angle grinder.