2" × 3" FR1 Substrates – 10/PackDescription: These blank 2 x 3 FR1 boards are optimized for drilling. FR1 does not contain any fiberglass and is softer than FR4, so theres less wear and tear on your drill bits. Clamp them to the printing platform and press print to dispense ink and print your circuitry. What's included: Each pack contains 10 boards. Resources: Design Files
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