Wood Router Bits

Wood Router Bits

Plan a rabbet, slot or matched joint

Use the joint drawing to separate slot width, radial depth and stock thickness.

Define the two dimensions of a rabbet

Mark the depth into the edge and the height of the step on a sample. Compare the two dimensions with the published cutter and bearing configuration before choosing the tool.

Check what a bearing changes

On a compatible bit, the bearing changes the distance between the original edge and the cutter’s reach into it. The axial thickness of the cutter remains a separate specification.

Check the set inventory and machine

A matched joint set may have one cutter for each side. Confirm that both are included, that the stock thickness is supported and that your router setup is approved for the exact model.

Source documentation

Guide questions

Which number determines the width of an edge slot?

Compare the axial cutting thickness with the desired slot width. The bearing configuration determines radial depth on a supported design.

Do all tongue and groove sets fit the same material?

Use the thickness range for the exact set. Similar-looking profiles can be designed for different stock sizes.

What should I check when replacing one cutter from a set?

Match the maker and exact replacement number, then verify the profile and collet against the cutter you already own.

Which accessory suits the job?

  1. The 1914 and 1918 share a nominal three-eighths-inch radial depth, with axial cuts of one-quarter and three-eighths inch respectively.

    Whiteside 1914 slotting and rabbeting bit ↗Whiteside 1918 slotting and rabbeting bit ↗

Accessories in this guide

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