Universal Steel Reference Tool (Imperial Gauge, Ruler, and Bolt Size)

thingiverse

Working in the steel distribution industry at a service counter with no prior experience is pretty challenging, so I designed a reference tool. Let me know if I could add anything to it. Top-end has labeled gauge thickness 10-18, the bottom has 20-30 (for the customers that ask how thick a certain gauge of sheet steel is). Added a hole for every size bolt we sell; for the customers that bring in a bolt and don't know the size of it (along with each converted to decimal for quick reference to enter into the computer.) Sizes are 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 3/4, 7/8, 1, 1 1/8, 1 1/4, 1 1/2, and 2. And threw a ruler on the side for good measure (pun intended).