3" x 4" FR1 Substrates$14.99SKU: 1000281
6 substrates included
When you start to run out of space in your design, migrate over from the small substrates to these.
These substrates are made of FR1 - which means they don't contain fibreglass. There is less wear on the drill bits and the dust is not harmful to your lungs.
Download the template and incorporate them into your design here.