Wood Router Bits

Wood Router Bits

Choose a straight bit or spiral for a groove

Match the groove width to the stock and pick flute geometry suited to the material and visible face.

Measure the piece that will enter the groove

A panel’s nominal size and measured thickness can differ. Check the exact piece where it will sit, then select a cutter width and test the fit in scrap from the same stock.

Compare flute directions

An upcut spiral directs chips toward the router. A downcut directs them away. Where the stock has a delicate visible face, use the manufacturer’s guidance and inspect the corresponding edge on a sample.

Read the cut length as a dimension

The cutting section describes how much of the tool can engage material. It does not prescribe pass depth. Consult the documentation for the particular cutter and machine before choosing a setup.

Source documentation

Guide questions

Does a half-inch cutter always suit half-inch plywood?

Measure the plywood before selecting a bit. An undersized panel may need a narrower groove than the nominal dimension suggests.

Which face does an upcut favor?

Whiteside describes the cleaner edge as the one farther from the router. Confirm the result on the actual material.

Why does compression geometry need more checking?

Opposing flute sections meet at a model-specific position. The transition must suit the stock and the documented operation.

Which accessory suits the job?

  1. The 1066 and RU5150 both have a half-inch cut diameter and shank. The 1066 uses two straight flutes, while the RU5150 has an upcut spiral and a longer cutting section.

Accessories in this guide

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