The caliper meant for measuring the width of a slot is

The upper jaws of a digital caliper are used for taking inside measurements such as the diameter of a hole or slot, while the lower jaws are used for measuring

Does it extend accuracy or precision? Explain -A Vernier caliper is a precision instrument that measures internal dimensions, outside dimensions, and depth

which gpu slot to use Does it extend accuracy or precision? Explain -A Vernier caliper is a precision instrument that measures internal dimensions, outside dimensions, and depth

which slot does washing powder go in How about split-ball type hole gauges? One of those would give you the actual width of the slot at the point you set it in But if what you want