Transparent and tilt-resistant. In combination with the light ring, the transparent base runner provides a perfect view of the workpiece. The small opening makes reliable guidance of the router possible even in corners and without tipping over. Light-transmissive: The work area is optimally lit in combination with the LED light ring|Steady: Perfect working without tipping over thanks to the small centre hole and continuous running surface|Adjustable hole diameter: The opening can be enlarged to the cutter diameter by plunge-cutting with the router. Routing in the edge area or corners|Working along the scribe mark. with retaining screws|with 20 mm dia. centre hole. for OF 900, OF 1000, OF 1010, OF 1010 R