The HP Agilent 85052C Precision Mechanical Calibration Kit contains precision standard devices to characterize the systematic errors of Agilent network analyzers in the 3.5 mm interface. The HP Agilent 85052C kit also contains adapters to change the sex of the test port and a torque wrench for proper connection. Included are standards definitions on disk. Calibration standards to perform full two-port calibration. Precision 50 ohm airline for Thru-Reflect-Line (TRL) calibration. Torque wrenches for properly connecting standards. Adapters to change the sex of the test port. Standard definitions on disk for loading into network analyzer.