How to Turn a Plunge Router Into a Fixed Base

Written by chris baylor
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How to Turn a Plunge Router Into a Fixed Base
A 1/4-inch shank round over router bits (router bit s image by Michael Cornelius from

Routers, used for a number of tasks in woodworking, utilise a high-speed motor installed in either a fixed--or stationary--base or a plunge base. The plunge base allows the spinning router bit to be plunged directly downward into the wood, then locked into position to complete a cut. Using the locking mechanism, a plunge base router can be used for some tasks typically requiring a fixed base, such as in a router table.

Skill level:

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Things you need

  • Router with locking plunge base
  • Tape measure

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  1. 1

    Disconnect the router from the power source. Position the router upside down on a work table.

  2. 2

    Install the bit to be used into the router collet. Tighten with the collet wrenches that accompany the router.

  3. 3

    Loosen the locking mechanism on the plunge base. Push slowly downward on the spring-loaded plunge base until the bit extends out from the base the desired distance.

  4. 4

    Lock the plunge base locking mechanism in place. Verify the desired depth of cut by measuring with a tape measure from the bottom of the router base to the tip of the exposed router bit.

  5. 5

    Install the router into your router table or begin routing by hand with the plunge base locked as desired.

Tips and warnings

  • When using a router, always wear appropriate safety equipment, including safety glasses and hearing protection.

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