Infinity Tools Brass Guide For Tapered Dovetail Spline Jig

$6.83 ~~$9.9~~ In stock

Replacement bushing and locking nut for the Infinity Tools Dovetail Spline System. The anodized, extruded aluminum router jig works with this brass guide bushing to create a tapered dovetail groove in the corners of your box. You can use a handheld router or a router table to rout the grooves.

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Customer Reviews (4.4 / 5 · 5 reviews)

Thomas K. ★★★★★ Oct 21, 2026

Finally a bushing that locks down without any wobble; the locking nut threads on cleanly and holds tight through the whole pass. My tapered splines come out crisp and consistent every time now.

Edward ★★★★★ Oct 19, 2026

The locking nut threads on smoothly and stays tight during use, no wobble at all. Makes precise dovetail cuts much easier than with the worn-out stock bushing I had been fighting with.

Ava ★★★★★ Oct 18, 2026

Swapped out the old bushing for this brass guide and the fit is noticeably tighter—no more wobble in the dovetail slots. The locking nut threads on smoothly, and it stays put even under heavy routing. Makes precise, consistent spline joints look effortless.