It's almost impossible to screw up making a protractor. I like this one, it's small and made of stainless steel. As it is made in China the edges were a bit sharp so I filed them down to soften the edges. It still works, but now it's more convenient to hold.
🔧 UEi Test Instruments DAFM3B Digital Multimeter
6 Review
🌬️ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review
🔍 Dioxide Controller for Digital Gas Monitoring
5 Review
Portable Handheld Manometer 📏 for Accurate Pressure Differential Measurement
5 Review