Comparison : Item # IM-4-SS, Precision Metal Orifices - Press-Fit Inserts, 0.315" OD
Item # IM-5-SS, Precision Metal Orifices - Press-Fit Inserts, 0.315" OD
Item # IM-6-SS, Precision Metal Orifices - Press-Fit Inserts, 0.315" OD
Item # IM-7-SS, Precision Metal Orifices - Press-Fit Inserts, 0.315" OD
Item # IM-8-SS, Precision Metal Orifices - Press-Fit Inserts, 0.315" OD