#9092 Square Test Block – Robertson Drive

The #9092 Square Test Block is a precision master reference tool designed to verify square driver bits and screwdrivers manufactured to Robertson square drive standards.

Test blocks provide a controlled dimensional reference used to confirm driver conformity, calibration accuracy, and inspection system repeatability.

The 9092 Series is used in conjunction with square plug gages and GO / NO-GO ring gages to validate inspection equipment and maintain quality control programs.

Available sizes:

9092-00 – Size 00

9092-0 – Size 0

9092-1 – Size 1

9092-2 – Size 2

9092-3 – Size 3

9092-4 – Size 4

The 9092 Series is ideal for:

• Driver bit manufacturers

• Screwdriver manufacturers

• Fastener producers

• Industrial assembly operations

• Calibration laboratories

• Quality control departments

Test blocks are heat treated, thermally stabilized, and surface treated to provide maximum dimensional stability and long-term wear resistance.

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

The 9092 Series ensures reliable calibration verification and square driver inspection consistency.