This caliper is must have. First, price is excellent, quality is very good, works flawlessly and precision is in 0.1 mm order.
You need this in order to build your RC, many parts require to measure distance, like turnbuckles. And also is very good to identify parts like screws and similar with dimension very close to others.
And when you need to setup your car, you require one good caliper like this one in order to measure everything to set toe in, camber, damper, drop and rebound, etc.
I am so glad I bought this caliper before assembly my RC