Trex Forstner Bit

Trex Forstner Bit

The Trex Forstner bit is allows for easy installation and is designed specifically for the Trex Rail Lights, Trex Riser Lights and Trex Recessed Deck Lights. The bit is 25mm in diameter and features a saw-tooth design for fast, precise, no tear-out cutting.

Forstner bits, named after their inventor, Benjamin Forstner, bore precise, flat-bottomed holes in the Trex decking and wood sub structure, in any orientation with respect to the wood grain. The bit includes a centre point which guides it throughout the cut. The cylindrical cutter around the perimeter shears the wood fibers at the edge of the bore, and also helps guide the bit into the material more precisely. The bits have radial cutting edges to plane off the material at the bottom of the hole.

Sold individually, don’t forget order an extra if you are installing a lot of lights.


To reduce the risk of injury, user must:

  • Always wear proper protective clothing (safety goggles, gloves, dust mask etc.)

Trex Router Bit Groove Cutter 01