The Hart jig, model GFK1800, is especially large, well-designed, and well-made for a lower-priced, half-blind jig. However, cutting through dovetails with the jig requires setting up additional templates.

The initial setup and adjustment took only 30 minutes. I recommend the simple but effective setup gauge ($10), which aligns the side guides and template and sets the bit height. Cam-style clamp levers ($20) are also a helpful upgrade.

As with all half-blind jigs, the template supports only slightly more than half of the router base, so care must be taken to prevent the router from tipping. The Hart jig also offers templates for through-dovetails—one each for pins and tails. Unfortunately, each time a template is changed, it must be set up and adjusted for accurate results.

The Hart 18-in. jig is a solid performer. A 12-in. model is $100, and includes a free setup gauge.

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