This JBO thread plug gauge provides a dependable way to verify the accuracy of 1/16-27 NPTF right-hand threads in production, maintenance, and quality-control settings. Its go/no-go design lets inspectors quickly determine whether internal threads meet required specifications without the need for complex measuring equipment.

• Quick Pass/Fail Testing: The separate go and no-go ends allow immediate confirmation that threads are within tolerance, reducing inspection time on the shop floor or in the field.
• Secure Handling During Use: A precision-knurled grip gives steady control when inserting and removing the gauge, helping maintain consistent contact and minimizing hand fatigue over repeated checks.
• Reliable Compliance With NPTF Standards: Manufactured to match Unified thread specifications, the gauge supports accurate verification of thread form, pitch, and taper for applications where leak-tight seals matter.

By delivering clear, repeatable results during incoming inspection or routine maintenance, this gauge helps prevent assembly issues, reduces rework, and supports consistent product quality across manufacturing, automotive, and aerospace work.