Yes. There is a video on the Cherne page on YouTube that demonstrates how a joint tester works. Owner’s Manuals with specific instructions on assembling and using Cherne Joint Testers can be found in technical section of the Cherne website.
What is the shelf life of smoke bombs and liquid smoke?
Smoke bombs have a one year shelf life from the date of manufacture. The shelf life on the mineral oil used in liquid smoke is indefinite.
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