|One gauge measure -3, -4, -5, -6 rivets. Used to check for proper length of rivets Before setting. Eliminates measuring and guessing of rivets lengths. Works for both universal head and flush rivets. Precision machined to size from 2024 aluminum. Rivet size permanently stamped. Blue anodized finish.|
It does what it is supposed to do. One suggestion for improvement is that each cutout has two sides, an arrow indicating which side to use would eliminate confusion, especially on the smaller rivet sizes.
Its used like a bolt gauge. It has 4 different rivet lengths, you rest the head of the rivet on the edge to determine which length the rivet matches.