Over my 50+ years as a master auto technician, vocational educator and vehicle owner, I learned the importance of a vehicle’s braking systemespecially the calipers. So, I never wait for my brake ...

A dead battery in your digital calipers usually means a trip to the store for a new button cell. Not for [Trevor]. His hack substitutes a super capacitor, guaranteeing you’ll never need to ...

So I’ve assembled a collection of micrometers and vernier calipers of varying quality, and it’s time to dive in and measure some very small things. Some of you will be metrology enthusiasts ...