Hole Gauge Calibration Diameter block test, with raised numbers

Check out Version 2: 

https://www.printables.com/model/1481683-hole-gauge-calibration-v2-diameter-block-test-with

I kept guessing at hole sizes for support rod inserts into models.  This print allows for rod insertion testing to know what hole size to put into a print before printing.  

The base is 8mm tall with 2mm raised lettering.  This gives enough clearance to ‘Cut’ the bottom and top off to the size you wish to use.  

I also attached a .3mf file that is cut into 3 sizes (I know the top of the 5.x is cut, whoops) if you wanted smaller sizes in case of print failure or the option to print only smaller or larger holes.

============== Brass and Nickel Rods ==============
Brass Round Rods Bar Assorted Diameter 2-8mm 
https://www.amazon.com/gp/product/B07KS576WJ/

Generic rule, add 0.3 mm for brass rod.  0.2 is TIGHT

2 mm --->  2.3 mm HOLE
2.5 mm ---> 2.8 mm HOLE
3 mm ---> 3.3 mm  HOLE
4 mm ---> 4.3 mm HOLE
5 mm ---> 5.3 mm HOLE
6 mm ---> 6.3 mm HOLE
8 mm ---> 8.3 mm HOLE

2 mm STEM Toys Shaft Round Rod Axles for DIY Toy RC Car Boat Helicopter
https://www.amazon.com/gp/product/B07D2WSF29/

2 mm  --->  2.3mm HOLE

============== Threaded Rods ==============

#8-32 = 0.1631 = 4.14 mm ---> 4.3 mm HOLE  
https://www.homedepot.com/p/8-32-tpi-x-36-in-Zinc-Plated-Threaded-Rod-802027/204276657

5/16 = 0.3125 = 7.94 mm ---> 8.0 mm HOLE  
https://www.homedepot.com/p/Everbilt-5-16-in-x-36-in-Zinc-Plated-Fine-Threaded-Rod-800807/204325651

3/8 = 0.375  = 9.525 mm (website, unverified) --->     
https://www.homedepot.com/p/Everbilt-3-8-in-x-36-in-Zinc-Plated-Fine-Threaded-Rod-800817/204325652

============== Fiberglass Rods ==============

White fiberglass rods = 8 mm (caliper)  --->  8.1mm HOLE

Fiberglass Reflective Rod in Orange  
https://www.homedepot.com/p/Everbilt-48-in-Reflective-Rod-in-Orange-31474/304685319

0.375 in (9.5mm) (website, unverified)  --->   8.1mm HOLE

============== Wood Dowels ==============
3/16 ---> 5.3mm HOLE
https://www.homedepot.com/p/3-16-in-x-48-in-Raw-Wood-Round-Dowel-HDDH31648/204354369

5/16  = 7.94 mm ---> 8.1mm HOLE
https://www.homedepot.com/p/6405U-5-16-in-x-5-16-in-x-48-in-Hardwood-Round-Dowel-10001802/203334062

3/8 = 9.5 mm dowel ---> 10.1 HOLE  
https://www.homedepot.com/p/3-8-in-x-48-in-Raw-Wood-Round-Dowel-HDDH3848/204354371

7/8 = 22.225 mm --->  BIGGER THAN 16mm, unable to test.  
https://www.homedepot.com/p/6414U-7-8-in-x-7-8-in-x-48-in-Hardwood-Round-Dowel-10001807/203334067

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https://www.cableorganizer.com/learning-center/how-to/conversion-chart-millimeters-decimals-fractions.html

https://tengtoolsusa.com/blogs/news/fractions-to-decimals-to-inches-to-mm-conversion-chart

https://www.reade.com/reade-resources/reference-educational/reade-reference-chart-chemical-conversion/fractions-to-decimals-to-inches-to-mm-conversion-chart

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