The Master Orifice Tool is required by Continental’s SB03-3 Service Bulletin. Use it with the Eastern’s E2A, or our own (ATS) 2E Differential Pressure tester to determine your calibrated leakage reading prior to engine testing. Precision machined to a tolerance of .0001" from non-sparking brass, and includes a set of sealed endcaps to protect against dirt and debris when not in use..

Note: this tool is not needed by our 2EM or Eastern’s E2M, as they already have their own built-in master orifice.