If you received the TT0113 .370″ parallel tip XP95’s , the trim code is IR6. Not sure why the invoice would say IR1, but I will investigate. IR1 would be for taper tip, which we do sell online, while supplies last, and the code number for the .355 taper tip is TT0101. If you received the TT0113, it is IR6. If you received the TT0101, it is IR1.