No one has mentioned the pocket clip. That says this is to be carried around and used fairly often, which definitely supports the tamper/bottle opener answer.
When someone wears a tire gauge with a pocket clip, I assume they either work in or around a garage or are a really aggressive driver keeping track of those radials.
When someone wears a tire gauge with a pocket clip, I assume they either work in or around a garage or are a really aggressive driver keeping track of those radials.