1/2" Shank Roundnose Router Bits, 1/8" to 1/2" Radius

Q: Is a roundnose bit the same as a corebox bit?

Yes. Roundnose bits are also called corebox bits. The terms describe the same rounded, scoop-shaped cutting profile.

Q: What shank size do these bits have?

These bits have a 1/2" shank , which provides added rigidity for smooth cuts. Run them in any router with a 1/2" collet.

Q: What cutter heights do they have?

Depending on the size, cutter heights are 1-1/4" or 5/8" .

Q: Who makes these roundnose bits?

They are made by Infinity Cutting Tools . Explore matching router bit sets to expand your kit.

Description Reviews Q&A Documents

Infinity Tools Roundnose (Core Box) Router Bits – Add Smooth Curves, Decorative Grooves & Details

Add smooth, flowing details to your woodworking projects with Infinity Tools Roundnose Router Bits, commonly called Core Box Router Bits. The fully rounded cutting profile makes these versatile bits ideal for routing decorative grooves, flutes, veins, and coves in furniture, cabinetry, doors, drawer fronts, signs, and other woodworking projects.

Roundnose router bits are also an excellent choice for rounding and shaping the inside edges of bowls, trays, boxes, and recessed areas, where their radiused profile creates a clean transition between the bottom and side walls.

For even greater versatility, our Top-Bearing Roundnose Router Bits allow the bearing to follow a template or existing edge, making it easy to create curved and decorative details on cabinet doors, drawer fronts, panels, and other custom projects.

Whether you're adding a subtle decorative accent or creating a prominent routed detail, Infinity Tools Roundnose Router Bits deliver the clean cuts and smooth profiles you expect from a premium-quality carbide router bit.

Router Bit Suggested RPM & Safety Guidelines

Frequently Asked Questions

What is a roundnose router bit used for?

It cuts a rounded, half-circle groove, ideal for delicate coves, decorative veins, corebox flutes, and rounding the interior edges of bowls and trays. See more carbide router bits.

Is a roundnose bit the same as a corebox bit?

Yes. Roundnose bits are also called corebox bits. The terms describe the same rounded, scoop-shaped cutting profile.

What shank size do these bits have?

These bits have a 1/2" shank, which provides added rigidity for smooth cuts. Run them in any router with a 1/2" collet.

What cutter diameters are available?

These roundnose bits come in 1", 3/4", 1/2", and 1/4" cutter diameters so you can match the radius to your project.

What cutter heights do they have?

Depending on the size, cutter heights are 1-1/4" or 5/8".

Can I round the inside edges of bowls and trays with these?

Yes. The roundnose profile is well suited to rounding out the interior edges of bowls and trays, as well as cutting decorative coves and veins.

Are there bearing-guided versions for templates?

Yes. Top Bearing roundnose router bits let you follow a template for decorative doors or drawer fronts. Browse our carbide router bits for the full lineup.

Should I use these in a router table or handheld?

Either works, but a router table offers better control for fluting and decorative grooves, especially with the larger-diameter bits.

Who makes these roundnose bits?

They are made by Infinity Cutting Tools. Explore matching router bit sets to expand your kit.

What projects are these bits good for?

Fluted columns and panels, decorative veins, sign work, corebox grooves, and rounding the inside of bowls and trays. Combine them with other carbide router bits for a complete detailing set.

Infinity Tools 1/2" Shank Roundnose Router Bits