With its toothed protractor-head design, the V27 is similar to other Incra gauges. It allows for 27 positive stops at every 5°, plus a stop at 22 1/2° on each side of 90°.

To eliminate a sloppy fit in the miter slot, the 15 3/4-in.-long steel miter bar has four adjustable nylon washers. Like all Incra miter gauges, the V27 requires the user to check that the mounting bracket is square to the miter bar and the saw table. If either is out of square, you need to adjust it. On the plus side, these are likely to be one-time adjustments.

Once the initial setup was completed, the V27 was excellent. Adjusting the protractor head between angles was quick and precise the large clamping handle, combined with the easy-to-read angle markings, allowed for setting the head to any angle between the 5° positive stops.

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