Kreg PRS1020 Instrucciones De Montaje página 7

In Use: Starting Pin
6.
The starting pin included with your router table is useful when routing
curves. It supports the edge of your work piece and allows you to gently
ease your work into the router bit. It should only be used with router bits
that have a bearing.
Start with your work piece touching the starter pin, but not in contact with
the router bit. Ease the material into the cutter and make contact with
the ball bearing on the bit.
Once you've made solid contact with the ball bearing you can ease off of
the starting pin and allow the work piece to glide along the bit's bearing.