Infinity Tools 1/2" Shank Tongue & Groove For 3/8" to 5/8" Stock

It is designed for material from 3/8" to 5/8" thick, unlike standard sets that are matched for 3/4" stock. This makes it ideal for thinner panels, flooring, and furniture parts. See more joinery router bits.

Both bits have a 1/2" shank, so they require a router with a 1/2" collet. The 1/2" shank provides the stability needed for the 1-7/8" diameter cutters.

Yes. The set is factory matched so the tongue produced by one bit fits the groove produced by the other for a perfect, repeatable joint. You do not need to fine-tune the bits to get a clean fit.

It cuts a precise 3/16" tongue and groove with a full 5/8" wide profile, giving you plenty of glue surface for a strong bond.

It is well suited to flooring, wainscoting, side paneling, and fine furniture. Any project using thinner stock that needs a strong, self-aligning glue joint is a good candidate. Browse related cabinetry & joinery tools.

The slot cutters use a 3-wing, anti-kickback body, which limits how much material the cutter can grab per pass. This makes cutting safer and the feed smoother, especially in a router table.

Yes, and a router table is the recommended way to run it for accuracy and safety. Explore our router tables to set up repeatable tongue and groove cuts.

The product is sold as a matched set of slot cutters that together cut the tongue and the groove. The cutters are machined to mate precisely with each other.

The full 5/8" wide profile increases the surface area where the tongue and groove meet, so there is more area for glue to bond. More glue surface means a stronger, more durable joint.

The cutters are precision-machined carbide built for efficient cutting, and the factory-matched, anti-kickback design keeps results consistent across long runs. Pair them with quality carbide router bits for a complete shop setup.