No. A large-diameter bit belongs in a router table, on a 1/2” shank, at the lowest speed the router offers — held in the hand it is uncontrollable, and its rim speed at full rpm is well past what the cutter is designed for.
The answer is no, and the reason is rim speed rather than motor power.
The arithmetic of a large bit
A cutter’s rim travels a distance proportional to its diameter. A panel raising bit is several times the diameter of a straight bit, so at the same rpm its edge is moving several times as fast. Run at a router’s top speed, it is far outside its design envelope, and the failure mode of a large spinning cutter is not something to discover experimentally.
Every large bit is marked with a maximum speed. Take it literally.
Why it has to be in a table
A cutter that diameter takes a wide bite and generates real torque, which twists a handheld router out of position. The workpiece also has to be held flat against a fence and a table with the cutter mostly buried, which is a table operation by definition.
What the setup needs
A router with speed control, set low. A 1/2” shank. A fence that shrouds the cutter and leaves only the working part exposed. Several passes, raising the cutter a little each time.
The smaller alternative
A vertical panel raiser cuts the same profile at a much smaller diameter, and it is the safer answer on a modest router.
Last reviewed 2026-08-12