#9013 Type II GO / NO-GO Ring Gage

The #9013 Type II GO / NO-GO Ring Gage is a precision inspection tool designed to verify dimensional accuracy of Type II Frearson driver bits and screwdrivers.

Manufactured in compliance with ANSI B107.600 and ASME B18.6.4 / B18.6.5M standards, the 9013 Series provides functional GO and NO-GO verification for Frearson cross recess driver tools.

The Frearson drive geometry differs from Phillips and Pozidriv systems and requires dedicated inspection tooling to ensure proper driver conformity.

Unlike plug gages and penetration gages, which inspect screw recesses, the 9013 Series verifies the driver tool itself.

Each ring gage features precision ground GO and NO-GO openings to confirm driver conformity within allowable dimensional tolerances.

Available recess sizes:

9013-00 – Size 0

9013-01 – Size 1

9013-02 – Size 2

9013-03 – Size 3

9013-04 – Size 4

The GO opening verifies acceptable minimum dimensional conformity.The NO-GO opening confirms the driver does not exceed maximum allowable tolerance.

The 9013 Series is ideal for:

• Marine driver manufacturers

• Aerospace suppliers

• Defense contractors

• Tool production facilities

• Quality inspection laboratories

All ring gages are heat treated, thermally stabilized, and surface treated to maximize wear resistance and extend gage life.

Long form calibration certificates provide dimensional verification and traceability to the National Institute of Standards and Technology, NIST.

The 9013 Series delivers reliable GO / NO-GO verification for Type II Frearson driver tools.