Can Seam Evaluation 

This three section video details the entire can seam evaluation process to confirm your canning system is producing seams within your can manufacturers specifications.
Part 1: 1st & 2nd Op Seam Measurement [0:20]
How to use a Can Seam Micrometer [0:15]
Measuring 1st Operation Seam Thickness [1:10]
Measuring 2nd Operation Seam Thickness [2:45]
Measuring Seam Height [3:45]
Part 2: Manual Can Teardown [5:00]
This section details the process of exposing the cover hook and body hook for measurement to confirm seams are being formed within specification.
Part 3: Can Seam Evaluation - Body Hook and Cover Hook [6:30]
After you have completed a can teardown (Part 2), Part 3 guides you through the process of measuring the body hook and cover hook to ensure seams are within specification.
Body Hook Measurement [6:45]
Cover Hook Measurement [7:40]