Measuring instrument is growing and the measuring type becomes more varied. Maybe for the main duty every measuring instrument has the same purpose. But for the form, measuring instrument becomes more varied accordance with the object to be measured.
One measuring instrument that available in the market is pin gage. For the layman, the name of pin gage course looks so strange. But like the other measuring instrument, this instrument is used to measuring too. But it has the specific purpose and used to measure the size of the hole. Because of this purpose, this measuring instrument has the standard diameter. This instrument has two sides. There are go side and no go side. So if you want to measure the size of the hole, this stuff will be so helpful for you.
But before you start to use it, you need to calibrate it first. This step is so important to note. If you do not calibrate it first, the measuring will be closer from mistake. The way to use this measuring instrument is simple. Like the other measuring instrument, you just need to measure the object that you want to measure. But you are not measuring the nominal but the tolerance of the size of the hole.