I found a toolkit that includes a ruler, protractor, compass, and other drafting tools which might be perfect for illustrating scaled diagrams. The LABANCA 7 Pcs Compass Set with Protractor Rulers Drafting Tools Kit includes:
1 x Compass
1 x Ruler
2 x Set Squares
1 x Protractor
1 x Graphite Refills
1 x Eraser
It's a comprehensive set that should cover all your needs for creating scaled diagrams. You can find it on Amazon or other online retailers.
https://www.tellculvers.cc
I found a toolkit that includes a ruler, protractor, compass, and other drafting tools which might be perfect for illustrating scaled diagrams. The LABANCA 7 Pcs Compass Set with Protractor Rulers Drafting Tools Kit includes:
1 x Compass
1 x Ruler
2 x Set Squares
1 x Protractor
1 x Graphite Refills
1 x Eraser
It's a comprehensive set that should cover all your needs for creating scaled diagrams. You can find it on Amazon or other online retailers.
https://www.tellculvers.cc