How to Drill Acrylic

Drill acrylic without cracking — bit choice, speed, clamping, and hole placement.

How to drill acrylic without cracking

  1. Keep protective film on
  2. Clamp with scrap backing
  3. Use a sharp bit suitable for plastics (or modified point)
  4. Moderate speed; clear chips; do not force
  5. Deburr lightly

For sign blanks and guards, plan hole spacing before cutting. Prefer ordering pre-drilled blanks when available.

FAQ

Why did my acrylic crack while drilling?

Usually stress from dull bits, no backing support, aggressive feed, or holes too close to an edge.

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