For best results use these bits with 1800W routers.
It is possible to use 1100W routers but only for brief passes that are short in depth.
SHOP TIPS:
multiple pass operations require advance planning.
To avoid making a mistake that could render it impossible to finish the job, carefully consider the entire cutting sequence before you begin.
SAFETY TIPS:
all large diameter bits such as these should be used with caution and on router tables equipped with a fence.
When possible, reduce the RPM.