wedge measure for diameter. simple to slide the diameter down the wedge opening. then read the diameter to the right. No need to put it in holes. to be sure, you can test the treads.  quick and easy.

A place to put a hex bolt to test the internal threads.

A place to put a screw from the far side to test an external tread.

a length gauge for the length

the photos only have 4 sizes installed. but there are places for 10 sizes.

Is intended to print face down without support.

there are different bodies for the different colors. If your AMS is loaded differently than mine, first notice what part has the diffent color, then change the color of the Object. This will change the the color of all the sub parts. Then change the main body color. This is easier than picking all the text parts.