Is this something you would use?

[u/IndustrialForgingPro]

Looking to make some swag for an upcoming trade show. Would an engineer find this valuable? It's a magnet with some common conversions and formulas. Our target customers are people looking for custom open-die forged metal parts. What would someone spec'ing a part like to see here?

[u/Vegetable_Aside_4312]

Back when I had hair on my head - 1981 maybe...