SKU: 14-127B

Infinity Tools 1/4" Shank Roundnose Router Bits w / Bearing

Q: Does this bit come with a bearing?

Yes. Both bits on this page include a top bearing kit with a stop collar and allen key , and the bearing diameter matches the cutter diameter.

Q: What router collet does this bit fit?

These bits have a 1/4" shank and fit any router that accepts a 1/4" collet. Browse more carbide router bits .

Q: What cutter diameters are available?

This page offers 1/2" and 3/4" cutter diameters, with cutter heights of 3/8" and 9/16" respectively.

Q: What size is the bearing?

The bearing diameter matches the cutter diameter , so it is 1/2" on the 1/2" bit and 3/4" on the 3/4" bit.

Q: What is a roundnose or corebox bit used for?

It cuts a smooth, half-round groove ideal for decorative veins, fluting, and sign making , and can round out the interior edges of bowls and trays.

Q: What's included with the bit?

Each bit includes a top bearing kit with stop collar and allen key so you can mount the bearing right out of the package.

$24.90

Cutter Diameter

1/2" 3/4"

Cutter Radius

1/4" 3/8"

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Description Reviews Q&A Documents

Infinity Tools 1/4" Shank Roundnose (Core Box) Router Bits – Decorative Grooves, Curves & Template Routing

Add smooth curves and decorative details to your woodworking projects with Infinity Tools 1/4" Shank Roundnose Router Bits, also commonly called Core Box Router Bits. Their 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 interior edges of bowls, trays, boxes, and recessed areas, creating a smooth transition between the bottom and side walls.

Both router bits on this page include a top-bearing kit with stop collar and Allen key, allowing the bit to follow a template or existing edge for even more decorative routing possibilities. The bearing diameter matches the cutter diameter for accurate template-guided routing.

With their versatile roundnose profile, premium carbide cutting edges, and convenient top-bearing capability, these 1/4" shank router bits are an excellent addition to any woodworking router bit collection.

Router Bit Suggested RPM & Safety Guidelines

Frequently Asked Questions

Does this bit come with a bearing?

Yes. Both bits on this page include a top bearing kit with a stop collar and allen key, and the bearing diameter matches the cutter diameter.

What router collet does this bit fit?

These bits have a 1/4" shank and fit any router that accepts a 1/4" collet. Browse more carbide router bits.

What cutter diameters are available?

This page offers 1/2" and 3/4" cutter diameters, with cutter heights of 3/8" and 9/16" respectively.

What size is the bearing?

The bearing diameter matches the cutter diameter, so it is 1/2" on the 1/2" bit and 3/4" on the 3/4" bit.

Can I use the bit without the bearing?

Yes. You can run it as a plain roundnose (corebox) bit for freehand grooves and veins, or add the bearing for template-guided cuts.

What is a roundnose or corebox bit used for?

It cuts a smooth, half-round groove ideal for decorative veins, fluting, and sign making, and can round out the interior edges of bowls and trays.

What projects benefit from the bearing version?

The top bearing lets the bit follow a template or edge, making it great for creating unique doors and drawer fronts with guided decorative detail.

What's included with the bit?

Each bit includes a top bearing kit with stop collar and allen key so you can mount the bearing right out of the package.

Should I use this bit in a router table?

A router table gives you the best control and visibility for guided decorative work, though the bit can also be used handheld.

Are these bits sold in a set?

Individual sizes are available here. For a broader selection and savings, browse our router bit sets.

Infinity Tools 1/4" Shank Roundnose Router Bits w / Bearing