Infinity Tools 1/2" Shank Radius Grooving Router Bit

This radius grooving bit is offered in 1/2" and 3/8" radius profiles, letting you choose the groove depth and width that suits your lettering or detail work.

It has a 1/2" shank and requires a router with a 1/2" collet, which provides stable, vibration-free cutting.

It is great for custom sign building, veining, lettering, and decorative edge work. The rounded groove creates flowing, easy-to-read lines on signage.

Yes. Both profiles accept top bearing kits, so the bit works in most pattern and template-routing applications. See our router templates for repeatable layouts.

This version is the bit on its own, but it is also available with a bearing kit for pattern or template sign routing if you need top-bearing guidance.

A radius groove has a rounded, half-round bottom, while a V-groove comes to a point. The radius profile gives softer, flowing lines that work well for veining and decorative lettering.

A router table gives you the control and consistency that sign and lettering work demands, especially when routing multiple blanks.

The cutter diameter is 1-1/8" or 3/4" and the cutter height is 3/4" or 5/8", depending on which radius profile you select.

Yes. Beyond sign making, the radius profile is well suited to decorative edge details and reeding. Explore more options in our carbide router bits collection.

These radius grooving bits are sold here as individual profiles, but you can browse coordinated profiles in our router bit sets.