The #9002 Type 1 GO / NO-GO Ring Gage is a precision inspection tool designed to verify dimensional accuracy of Phillips Type I and Type Z driver bits and screwdrivers.

Manufactured in compliance with ANSI B107.600 and ASME B18.6.4 / B18.6.5M standards, the 9002 Series provides functional GO and NO-GO size verification for cross recess driver tools.

This ring gage ensures:

• Proper driver bit dimensional form

• Correct tip geometry

• Compliance with referenced standards

• Production tool consistency

Unlike plug or penetration gages, the 9002 Series inspects the driver tool itself rather than the screw recess.

Each ring gage features precision ground GO and NO-GO openings to verify driver tip dimensional conformity.

Available recess sizes:

9002-00 – Size 0

9002-01 – Size 1

9002-02 – Size 2

9002-03 – Size 3

9002-04 – Size 4

The GO opening confirms acceptable driver size.The NO-GO opening confirms the driver does not exceed maximum dimensional tolerance.

The 9002 Series is ideal for:

• Driver bit manufacturing

• Screwdriver production

• Incoming tool inspection

• Calibration laboratories

• Quality control programs

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 9002 Series delivers reliable GO / NO-GO inspection for cross recess driver tools.