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23YEARS
SKU: 85-230B

Infinity Tools 1/4" Shank Solid Carbide Compression Pattern Cutting Router Bit

Regular price $159.90

Cutter Diameter
Cutter Height

Our premium quality 1/4" shank Compression router bit is your best choice when working with patterns that mount on top of the finished product. The true-solid carbide construction provides a long-lasting sharp cut, while the compression design of the flutes guarantees tear-out free results.

An excellent router bit choice for creating mortises in flat panels. The top cutter geometry is designed for efficient plunge cuts, while the shank-mounted bearing keeps the cut exactly on target.

We don't cut corners, so unlike inferior bits that are built with a steel shank, ours are true-solid, precision ground from one solid piece of C4 micrograin carbide. This insures perfect concentricity and a superior cut with extended tool life. We tested similar tools made on a steel shank and our true-solid construction ran circles around the competition.

  • 85-230B: 1/4" shank, 1/2" cutter diameter and 1-1/8" cutter height

Top-mounted bearing router bits offer several benefits:

  • The bearing at the top of the bit simplifies the setup process, making it more straightforward for woodworkers, especially those who may be less experienced.
  • This Infinity router bit can be used for multiple applications, including edge profiling, rabbeting, and dado cutting. The top-mounted bearing allows for greater flexibility in creating different profiles and cuts by adjusting the bit height. And the top-mounted bearing ensures a consistent depth of cut, particularly important when creating joints or when uniformity is critical.
  • Top-mounted bearings are excellent for template and pattern routing. The bearing rides along the edge of the template and accurately creates an identical piece or an intricate design.
  • Top-mounted bearing router bits are ideal for flush trimming operations.

Infinity Tools compression router bits are the best choice when working with patterns that mount on top of the finished product. Whether working on a router table, or freehand, the compression design of the flutes guarantees a clean cut, while the top-mounted bearing assures a smooth copy. Perfect for plunge pattern work!

The 85-230B, 1/4"-shank router bit (1/2" cutting diameter and a 1-1/8" cutter height) is your best choice when working with patterns with tight corners and curves. And if your pattern includes cuts in the center of the panel, then this router bit will be your best friend, being perfect for plung cuts. The solid carbide construction provides a long-lasting sharp cut, while the compression design of the flutes guarantees a clean cut.

The 1/4"-shank, top-mounted bearing, pattern bit makes smooth work of matching a profile radius accurately (convex, or concave!).

Our 85-930B, 1/2"-shank compression bit (3/4" cutting diameter and a 2" cutter height) is the perfect choice for larger pattern work, or for flush trimming thicker pieces.

For creating a groove when following a pattern, both of these premium quality router bits produce a clean recess thanks to their compression flute design.

These Infinity Tools router bits are also the right match for creating clean mortises in plywood - another tricky-grained product -  or any wood! And compression bits are great for plunge router operations! Long-lasting, clean-cutting and accurate when following a guide. 

 

The Infinity Cutting Tools Difference

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Frequently Asked Questions

Will this 1/4" shank bit fit my router?

Yes, as long as your router accepts a 1/4" collet, which nearly all compact and full-size routers do. The bit has a 1/2" cutter diameter and 1-1/8" cutter height. Browse more solid carbide spiral bits.

What does the compression flute design do?

The compression design pulls chips toward the center of the cut, guaranteeing tear-out-free results on both faces of the workpiece — ideal for plywood and veneered panels.

Why is true-solid carbide better than a steel shank?

This bit is precision-ground from one solid piece of C4 micrograin carbide rather than a brazed steel shank, ensuring perfect concentricity, a superior cut, and extended tool life.

What is a top-mounted bearing pattern bit used for?

The bearing rides along a template's edge to reproduce identical parts or intricate designs, making it ideal for template and pattern routing. See related router templates.

Can this bit do more than pattern routing?

Yes. It can be used for edge profiling, rabbeting, dado cutting, and flush trimming by adjusting the bit height, since the top-mounted bearing allows flexible profiling.

Can it plunge into the center of a panel?

Yes. The top cutter geometry is designed for efficient plunge cuts, making it an excellent choice for creating mortises in flat panels.

What are the exact dimensions of this bit?

Item 85-230B has a 1/4" shank, 1/2" cutter diameter, and 1-1/8" cutter height.

Why does the top-mounted bearing make setup easier?

With the bearing at the top of the bit, setup is more straightforward — especially for less experienced woodworkers — and it ensures a consistent depth of cut where uniformity is critical.

Is this bit good for flush trimming?

Yes. The top-mounted bearing makes it well suited to flush trimming operations. Explore the full flush-trim router bit collection.

What other router bits pair well with this one?

It pairs naturally with straight router bits for grooving and dado work, and other carbide router bits in your kit.