Irwin 23614 Hanson Tap and Die Set, 39 Pc, Carbon Steel, UNC UNF NPT, Right Hand 467M 01% + 2 Counts Product Type 01% + 2 Counts Product Type Loop Calibrator Communication Protocol HART Calibration Certificate Type NIST Digital Display Screen Type LCD Includes Batteries Batteries Included Source Voltage Maximum 30 V DC Current Measurement Minimum 0 mA Loop Current Maximum 20 mA Voltage Measurement Maximum 30 V DC Voltage Measurement Minimum 0 V DC Source Voltage Minimum 0 V DC Battery Chemistry Alkaline Source Current Minimum 0 mA Parameters Measured DC Current cellular relay stations Sometimes called second taps Solid round threading dies create external threads in one consistent size