On 01/01/2016 10:02 AM, notbob wrote:
I've also seen all-plastic vernier and digital calipers. I'd avoid these.

I keep a set of the cheap plastic ones in the car, and in the shop; they
come in handy for quick measurements, or for going to the yard to buy
stock.

Of course I have a digital set (accurate to 0.0005) in the shop for when
I need the accuracy, and for layout.

Jon