a2z 4 Inch Coaster Jig

The a2z 4 Inch Coaster Jig adapts the Universal Base for standard 4-inch round and square coasters — slate, wood, acrylic, or hardboard. The inset is 104mm square, deliberately a hair over 4 inches, so coasters with slightly generous tolerances still drop in flat. Every coaster lands in the same spot, so batch jobs run without realignment.

How the a2z jig system works

This is an insert jig for the a2z Universal Base. The system is simple: the base mounts to your laser bed once and gets centered once — that's the only alignment you ever do. After that, this jig and every other a2z insert drop into the base's 150mm opening and land in exactly the same spot, every time. Switch from coasters to coins to tumblers in seconds, and the engraving files you've already dialed in keep lining up without test marks or re-framing.

1. Mount the Universal Base once. One-time setup, centered on your laser.
2. Click in this jig for today's job. Same opening, same fit, as every a2z insert.
3. Engrave with repeatable positioning. No re-alignment between jobs — ever.

Specs: fits 4" round and square coasters · 104mm inset

Includes:

• 1x 4 Inch Coaster Jig

* Fits inside the Universal Base (sold separately).