Recess TIR Gage Explained: Measuring Fastener Concentricity (Step-by-Step)

This video demonstrates how to use a recess TIR gage to measure fastener concentricity, including recess, hex, slot, and head-to-shank alignment. In this video, we cover: • What TIR (Total Indicator Runout) means and how it relates to concentricity • How to set up and use the gage with different collets and elements • Measuring recess concentricity using a cone element • Measuring hex and slot concentricity with interchangeable elements • Checking head-to-shank concentricity • How to properly zero and use TIR mode for consistent results This gaging method provides a practical way to evaluate concentricity and ensure fastener quality during inspection. Chapters: 0:00 Introduction to Recess TIR Gage 0:13 Gage Components and Setup 1:29 Measuring Recess Concentricity (TIR Mode) 4:33 Measuring Hex Concentricity 7:32 Measuring Slot Concentricity (Non-TIR Mode) 9:36 Head-to-Shank Concentricity Setup 11:05 Conclusion Greenslade & Company specializes in fastener inspection equipment, calibration, and technical support. Phone: 817-870-8888 Website: www.greensladeandcompany.com Email: [email protected]