Precision Threading Die - 2B Tolerance American STI Thread - UN 1.3/8 x 8 by VLKEL

The Gutlehrdorn should screw into the cut thread of a workpiece by hand, without excessive force. If this isn't possible, the thread doesn't meet the desired standards (defective). All workpieces and gauges are referenced at 20°C. Upon request, VÖLKEL can provide a factory calibration certificate (price on inquiry). Calibration is performed in an independent lab, following established standards (DIN, ISO, ANSI), using IAC thread scanners.

• Manual Insertion Test: The Gutlehrdorn should screw into the cut thread of a workpiece by hand without excessive force
• Insertion Failure Indicator: If the Gutlehrdorn cannot be inserted, the thread does not meet the desired standards (rejected)
• Reference Temperature: The reference temperature for workpieces and gauges is 20°C
• On-Demand Calibration Certificate: VÖLKEL offers a factory calibration certificate upon request (price available upon inquiry)
• Independent Lab Calibration: Calibration is performed in an independent lab following established standards (DIN, ISO, ANSI) for each test specimen
• Calibration Method: The calibration is carried out using IAC thread scanners